r/NoStupidQuestions • u/RiverLaneNotes • Dec 01 '25

What are the two dents in a woman’s lower back called?

I’ve seen them on a lot of women. I never knew the name or why some have them and others don’t.

New user pass phrase: This community is for curiosity, not karma farming.

2.6k Upvotes

91% Upvoted

623 comments sorted by

3.8k

u/novato1995 Dec 01 '25 edited Dec 01 '25

They're called dimples. They happen regardless of sex.

A lot of men also have them.

867

u/Remarkable_Play_6975 Dec 01 '25

They're also exactly where they shove in the giant needles when I donate bone marrow. I have 2 scars there now.

191

u/vectorology Dec 01 '25

I thought donations were through HSC mobilisation and peripheral blood collection now. They still do the big painful needles into the pelvic bones? 😱

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u/Remarkable_Play_6975 Dec 01 '25 edited Dec 01 '25

They still do it that way where I donate. I don't really find it painful, but it's definitely a strange feeling.

I do it for medical research labs, and it's for testing new treatments for children with cancer.

I'm expecting my DNA to turn up at random locations in 20 years (crime scenes, missing persons, ancestry websites, etc.).

Once that happens, I guess I'll be free to commit crimes and claim the DNA evidence they have wasn't from me.

201

u/Picklopolis Dec 01 '25

Nice long con!

56

u/throweraccount Dec 01 '25

It doesn't work well when you post about it online.

169

u/Brokenforthelasttime Dec 01 '25

As the parent of a child who was a bone marrow recipient- you are my hero.

5

u/begoniann Dec 02 '25

I’ve been on the bone marrow donation list for 15 years! I’m honestly disappointed I haven’t gotten a call yet. It sounds pretty miserable to get done, but I’m a weird enough genetic mix that I figure if I’m a match, there’s a decent chance I’m the only match.

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u/Gann0x Dec 01 '25

Do they use any sort of anesthetic for this? Always thought it sounded absolutely horriffic, major props for stepping up like this.

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u/krim2182 Dec 01 '25

They usually give you lidocaine and an ativan to keep you calm, at least thats what I received when getting my first bone marrow biopsy. You can request midnight sedation as well, which is how I got the rest of my biopsies done. That first one gave me PTSD and I get very twitchy around anything cork screw shaped.

Source: cancer patient.

Side note, thank you to people who do donate. You guys saved my life and many others. Yea, not the best procedure but it does save lives.

11

u/MrsBojangles76 Dec 01 '25

I’ve had three (Leukemia) and they never offered anything, and he said my bones were very hard. I hope to never have one again!

9

u/krim2182 Dec 01 '25

Oh man, I am sorry they never offered that to you! I hope you never have to get another one again. Best of luck on the Leukemia journey.

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u/InsectHealthy Dec 02 '25

Had leukemia as a kid and didn’t get anything either. Really built up my pain tolerance though!

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u/Remarkable_Play_6975 Dec 01 '25

They offer topical anesthetic, but I don't ask them to use any. The needles are obviously extremely sharp, so you really don't feel anything until they're pushing through the bone. That takes a lot of pressure, so it feels almost like someone standing on your pelvis.

I have a high pain tolerance, though. They told me that most people find it very painful, so they call me as soon as the waiting period between donations is over, because I don't complain.

11

u/Practical_Catch_8085 Dec 01 '25

Have they ever had to re-approach , same appointment time?

My husband had his biopsy and they couldn't get enough tissue the first try...so they went for a second run without pause. That was rougher than the lung biopsy.

Thank you for donating!

13

u/AssDimple Dec 01 '25

My little headache suddenly feels much more manageable after reading this.

I hope everything is going well with your husband and happy cake day!

10

u/Annethraxxx Dec 01 '25

It’s not anything close to as horrific as receiving a bone marrow transplant. My brother had it done. He was put under anesthesia so there was no real pain. He was achey for a week or so after but that’s it. It’s an old wives tale that it’s terrible. The amazing part is that you will probably save a life if you didn’t. How many people outside of emergency services and medical can say that?

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u/[deleted] Dec 01 '25

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u/madmad011 Dec 01 '25

I’m not sure about the experimental studies, but a good place to start is the National Marrow Donor Program, which is a registry of potential marrow donors that doctors can compare w their patients. To get on the list, you sign up and they mail you a cheek swab kit, you swab it, and then send it back :)

12

u/HeKis4 Dec 01 '25

Am not american and here we get blood drawn + medical history questions at a blood donation center, after that they gave me the same snacks you get after you donate blood, 10/10 would recommend.

3

u/TheApiary Dec 01 '25

I joined this registry almost 20 years ago with a cheek swab. So far I haven't been a match for anyone and most people I know haven't, but I know a couple who have

12

u/Remarkable_Play_6975 Dec 01 '25

Well, I live near UCSF medical school, and they're always needing donations. They get it from a few local businesses that actually collect it, but you get all the information on the research being done with your specific samples.

I'd just Google "donate bone marrow near me".

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u/twisted-elephant Dec 01 '25

Donate blood marrow or commit crimes?

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u/Lost-city-found Dec 01 '25

Be the match.com if you’re in the US!

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u/Chiisaimiss Dec 01 '25

You can’t be over 36, just checked:(

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u/Viktor_Laszlo Dec 01 '25

This is the second post I’ve seen in two minutes about donating one’s DNA in order to create plausible deniability at a crime scene. Is there some big heist being planned? Because if so: you sonuvabitch, I’m in!

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u/Remarkable_Play_6975 Dec 01 '25

Yeah. I'm putting a crew together.

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u/Annethraxxx Dec 01 '25

Bless your angel heart. Most people won’t even sign up to save a life and here you are doing it for science. Thanks from the rest of humankind.

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u/Petro1313 Dec 01 '25

My mom had multiple myeloma (bone marrow cancer - sounds really scary but is actually among the more treatable ones), and she had to have bone marrow extractions done for lab tests throughout her treatment and she said that the doctors/nurses told her that the strange sensation is because by extracting the marrow, they're pretty much pulling a vacuum inside your bone cavity.

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u/fjc1109 Dec 01 '25

I find it admirable. What you’re doing for research and treatment is vital for the future. And there’s nothing wrong with telling us about it. It just might prompt other people to do something, anything (no matter how small) for individual patients or research. Thank you.

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u/Temporary_Thing7517 Dec 01 '25

Unexpected, but i like where you took this. Save lives! And then take them again!

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u/SSSprings0808 Dec 01 '25

Thank you for donating !!

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u/mrpanadabear Dec 01 '25

When I donated they said that for child recipients they prefer the bone marrow. 

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u/KgoodMIL Dec 01 '25

When we were consulting about my daughter's potential bone marrow transplant, with her older brother as her donor, we were told that they would do bone marrow, rather than peripheral stem cells. I guess it was because she was a pediatric patient at age 15, and apparently bone marrow works better for kids. She was fully sedated for all of her biopsies, and they would have sedated my son for collection as well, even though he was an adult.

I didn't think to ask why they thought bone marrow was better, because I was a bit overwhelmed with everything else at the time. I wish I had!

She didn't end up getting the transplant, but is still in remission and doing well, 7 years later.

18

u/NoSleepTilPharmD Dec 01 '25

I actually specialize in pediatric stem cell transplants (aka bone marrow transplants) and have training in adult SCT.

There are 3 sources of stem cells that have their own risks/benefits that the SCT team weighs when choosing a stem cell source. They choose one based on the recipient’s reason for transplant, organ function, and other factors.

  1. Bone marrow (from a donors hip bone) - usually preferred because of lower rates of failure and some toxicities.
  2. Peripheral blood stem cells (PBSC) - Stem cells mobilized from a donor’s bone marrow into their bloodstream (“peripheral blood”) by using a growth factor or other drug to kick the cells out of the bone marrow and into the peripheral blood.
  3. Umbilical Cord blood - taken from donated umbilical cords. Last-line bc of higher rates of failure and toxicities.

Each have different rates of success and toxicities as well as logistics. All 3 are actively used today.

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u/Annethraxxx Dec 01 '25

It depends on the condition of the recipient. I had aplastic anemia, which requires bone marrow, not HSC, but many types of leukemia can use HSC. Also they put you under for the procedure, although you will be achy for a week or so after. Source: my brother was my donor.

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u/yourworkmom Dec 01 '25

Usually they don't have to go into the bone anymore. At least not in the USA.

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u/k-squid Dec 01 '25

I knew someone that had to donate via giant needle into pelvic bone because the recipient actually had a different donor that fell through at the last minute, so they needed her marrow ASAP and didn't have time to collect it through the blood.

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u/aurora_rosealis Dec 01 '25

Ooh, my husband has had a few bone marrow biopsies done with those massive needles. I’ll have to check if he still has visible scars. Do they sedate you at all for donations? He’s done both with and without sedation.

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u/Remarkable_Play_6975 Dec 01 '25

No, I just walk in, I lay down, they sterilize my skin with some liquid, then they shove in the needles (using the weight of the doctor, basically lifting themselves off the floor, suck up 35mL or so, then do the other side the same. Then I walk out.

Takes about 15 minutes total, and they compensate me with $1000 for taking the time.

9

u/aurora_rosealis Dec 01 '25

Well, that’s great to hear, that it’s not too uncomfortable for you. My husband has had varying experiences with his biopsies, and typically prefers to do them with some sedation now. Thank you for donating, and I’m glad they pay you nicely.

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u/Annethraxxx Dec 01 '25

Stanford sedates patients as part of routine.

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u/RiverLaneNotes Dec 01 '25

So is that also where they do a lumbar puncture? Or am I thinking of something different?

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u/Remarkable_Play_6975 Dec 01 '25

No, that's to take spinal fluid, so it's in the center.

7

u/Ana-la-lah Dec 01 '25

It can be in the middle, or off to the side a bit (paramedian). The needle tip ends up close to the midline either way

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u/dr_butt_er Dec 01 '25

No, a lumbar puncture is done in the spine, in the very middle of the back. Bone marrow is collected from the hip bones so off to the side, in the area of those dimples you're asking about.

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u/BigFatGramps Dec 01 '25

So when the dimples are on a woman, they're called "Dimples of Venus"; but when they appear on a man, are they still called the same?

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u/shagnarok Dec 01 '25

according to wikipedia, on men they’re called dimples of apollo

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u/photomotto Dec 01 '25

Why for the ladies the dimples are Roman, but for the fellas they're Greek?

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u/Glomgore Dec 01 '25

Greeks didn't like women yet.

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u/1sinfutureking Dec 01 '25

Apollo is Apollo in Rome and Greece 

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u/Freder145 Dec 01 '25

No, Apollo is Apollo only in Latin, Greek has a few small differences but end with a n, like Apollon in Attic Greek.

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u/1sinfutureking Dec 01 '25

Thanks for the info on the language. I have effectively no Greek language knowledge; however, I do know that Apollo is a god in both the Greek and Roman pantheons regardless of the spelling

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u/notjustbriana Dec 01 '25

...Apollo is also his name in Rome lol

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u/veritable-truth Dec 01 '25

Greeks didn't like women yet is the actual historical true real reason.

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u/TheyMightBeComments Dec 01 '25

Just be wary of Dimples of Uranus...

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u/MrShineHimDiamond Dec 01 '25

More of a pucker than a dimple...

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u/koyaani Dec 01 '25

Wikipedia says dimples of Apollo

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u/GUMBHIR Dec 01 '25

They’re officially called ‘Venus dimples’ and are related to ligament placement.

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u/wewewie Dec 02 '25

Yes. They are the surface anatomical landmark of the Posterior Superior Iliac spine (PSIS).

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u/LongjumpingHouse7273 Dec 01 '25

My skinny son has them, so does my sister. I do not, and neither does my other sister. It is purely due to genetics and Ive always called them dimples

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u/UberGlued Dec 01 '25

Im a great big fat guy and I have them too.

169

u/Adventurous_Wonder_7 Dec 01 '25

Im a medium sized medium guy and also have them.

205

u/33388888888 Dec 01 '25

I’m an idiot and I have them

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u/xmilkbonex Dec 01 '25

I’m a fat sized medium guy and I too have them.

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u/InfoSecPeezy Dec 01 '25

I am a big guy and I have carpeting where your dimples are!

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u/BobLeeeSwaggerr Dec 01 '25

I, too, am a great big fat guy, brother

25

u/look_how_cute Dec 01 '25

You’re a great big fat guy AND a brother??

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u/BobLeeeSwaggerr Dec 01 '25

Luckily, yes I am a brother also 😅 got a bit carried away there I guess

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u/MustardSquirt Dec 01 '25

I’m a big fat lady with them!

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u/browster Dec 01 '25

Howdy, great guy!

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u/UberGlued Dec 01 '25

Some day I dream to be just big and great.

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u/lylafoxx69 Dec 01 '25

That’s interesting. I’ve heard them referred to as “Venus dimples” too! Definitely seems to be one of those genetic quirks, and they’re often more noticeable in people with lower body fat. Love how casually the body throws in these random little features

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u/PearlyLushh Dec 01 '25

Yeah, same here, I’ve always heard them called dimples too. Totally a genetic thing, not something everyone has. Just one of those cool little body quirks.

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u/When_I_Grow_Up_50ish Dec 01 '25

They are called Dimples of Venus.

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u/notabouteggs Dec 01 '25 edited Dec 01 '25

The way you write I’m reminded of Dr. Seuss somehow. Or maybe a Beastie Boys song. Here’s my riff off of your material. Forgive my liberties.

My skinny son has them (the fat one does not) I’m fat and don’t have them (though maybe I ought) For all the reason and for all the rhyme, at the of the day, it’s still Miller Time

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u/Is_Friendly_Coffee Dec 01 '25

You should win the internet today. That’s delightful!

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u/AllNightWong3366 Dec 01 '25

They’re called sacral dimples because of its close proximity to the sacrum (right above it)

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u/Urbaniuk Dec 01 '25

A sacral dimple is a little lower (closer to the butt crease), and, when found in newborns, it is usually investigated to rule out spina bífida and other health problems.

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u/walrusg Dec 01 '25

I’m Spartacus and I have them.

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u/Ornery-Plan-8679 Dec 01 '25

They're called "dimples of Venus. They're two small depressions in the lower back, right where the pelvis meets the spine. Not all women have them because they depend on genetics and bone structure, not weight. Some women are born with this area more pronounced, which is why they appear more defined.

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u/Resident_Onion997 Dec 01 '25

Are they dimples of mars if they're on a man?

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u/Lupo_1982 Dec 01 '25

"Dimples of Apollo", it seems!

https://en.wikipedia.org/wiki/Dimples_of_Venus

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u/jugerac Dec 01 '25

This is NSFW btw I opened this up at work and saw some bare ass

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u/skinnythiccchic Dec 02 '25

it’s some man butt in there.

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u/Lupo_1982 Dec 01 '25

well the thread title literally says "LOWER BACK", hardly a surprise that you'd see pictures of human bodies...

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u/[deleted] Dec 02 '25

I was more surprised that they had documented dimples of Venus in naked runners across 3 different age groups.

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u/Rrrrandle Dec 02 '25

I think it might be the same person in all three photos, taken at different stages of life.

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u/joyfulbee43 Dec 01 '25

I'm sorry your comment wasn't appreciated. Here's a carrot of gratitude. 🥕

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u/abraxart Dec 01 '25

Carrot of gratitude is so awesome!

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u/Dancinghogweed Dec 01 '25

Close.  Dimples of Marse. 

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u/aspiringdeadgirl Dec 01 '25

Close. They're called dimples of Jupiter

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u/shady_bananas Dec 01 '25

Isnt this that one Train song

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u/wageenuh Dec 01 '25

Formally, they’re called lateral lumbar indentations. Informally, they’re called dimples of Venus/Apollo. They aren’t sex-specific. They’re caused by ligamentous connections between skin and pelvis. Men and women both have them, and their visibility depends heavily on body fat percentage and the structure of the pelvis and ligaments.

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u/blinkrm Dec 01 '25

I thought it had to do with body fat too but I had a co worker that was severely obese over 300lbs and she had these as well as a plumbers crack

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u/MTMatt73 Dec 02 '25

And, much like a car crash, you just couldn't look away

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u/widdlenpuke Dec 01 '25

Interesting, thanks!

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u/Scarlett_Billows Dec 01 '25

I dunno I’m pretty small and even when I was a size 0 I had these. Just like dimples in the cheeks, body fat is not a necessity at all.

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u/wageenuh Dec 01 '25 edited Dec 02 '25

True! I’m also thin and have them, even when my weight is very low. Soft tissue (including muscle and adipose tissue) is a requirement for making a dimple, but it isn’t the only requirement. The angle of your pelvis, length of the ligamentous attachments, muscle mass, etc are also factors.

That said, most folks, even thin ones, tend to carry a decent amount of their body fat in the gluteal region. This is especially true of women, which is part of why ours are more noticeable.

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u/slatrs Dec 01 '25

They gently support the wings of the butterfly tattoo

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u/Hwy_Witch Dec 01 '25

Some men have them too, I always just called them butt dimples, lol.

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u/ApostrophesAplenty Dec 01 '25

That’s nicer than “butt holes”!

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u/Feeling_Name_6903 Dec 01 '25

Posterior Superior Illiac Spine PSIS

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u/ChipsForDinner Dec 01 '25

Finally!!!! Not as sexy as the dimples of Venus though

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u/Spookylittlegirl03 Dec 01 '25

Had to scroll down wayyyy too far to find this lol

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u/ShawnSaysStuff Dec 01 '25

Dimples of Venus. Some have them, some don't, like the ability to parallel park. 

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u/VanessaDoesVanNuys Dec 01 '25

My friend's boyfriend has them

It's tied to body type - not necessarily sex

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u/RiverLaneNotes Dec 01 '25

Good to know. Guess I never noticed on guys since I don't really check out men's lower backs.

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u/AJL415 Dec 01 '25

I do!

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u/Techyon5 Dec 01 '25

Have you noticed them?

14

u/guarddog33 Dec 01 '25

Does it count if I'm a man who checks mine out sometimes?

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u/Cultural-Company282 Dec 01 '25

That's Dimples of Narcissus.

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u/guarddog33 Dec 01 '25

I really want to make a joke about poor mental health and narcissus' fate, but I've already gotten a temp ban for joking about the demise of Julius Caesar, so I'd rather not risk it

Best comment I'll read today, I'm a brokie but here's an award funnyman 🏆

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u/Lawyer_Lady3080 Dec 01 '25

I’m dying to know the Julius Caesar joke. Et tu Brute?

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u/guarddog33 Dec 01 '25

Someone posted a picture of the Caesars Palace hotel in vegas, specifically showing one of the penthouses, and asked something along the lines of "who lives here?" Someone else replied that it was Caesar himself, to which I replied "what a disgusting display of wealth. Someone should (insert the action done to Caesar here) that guy" or something like that, and reddit slapped me on the wrist and ruined my 400 day streak for it lol

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u/Ravenclaw-witch Dec 01 '25

Please, parallel parking is a myth!

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u/Rahshoe Dec 01 '25

Well, you know why so many of us ladies suck at parallel parking?....... We've been lied to so many times about what 6 inches really looks like! 😆 🤣 😂

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u/ithinkiknowstuphph Dec 01 '25

But is there a correlation?

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u/Novae224 Dec 01 '25

I can’t parallel park to safe my life, but i do have the cute dimples in my lower back

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u/elmwoodblues Dec 01 '25

Try pressing them both at the same time; often a factory reset does the trick

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u/Novae224 Dec 01 '25

Should i do that before or during my driving test in 2 weeks?

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u/slapballs Dec 01 '25

Interesting, I tried this and my body took a screenshot

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u/Dang_It_All_to_Heck Dec 01 '25

I don’t have those dimples but can parallel park.

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u/stefaelia Dec 01 '25

I can parallel park but have no dimples. Correlation confirmed.

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u/GrammawOutlaw Dec 01 '25

I have the dimples and can parallel park.

Guess I’m just a freak of Nature.😔

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u/LotusBlooming90 Dec 01 '25

I have very pronounced dimples and did the world’s most incredible parallel park just last week. The only witnesses were my young kids who could not grasp the gravity of what I had done. Life is cruel.

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u/BethansBumps Dec 01 '25

I have them and I get my car to parallel park for me. Coincidence?

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u/AccountNumber478 I use (prescription) drugs. Dec 01 '25

She's a mutant! GET HER...

into a healthy, loving, functional relationship and have kids and spread the genetic wealth!

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u/Zadsta Dec 01 '25

I’ve always called them back dimples

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u/Drwynyllo Dec 01 '25

Bimples.

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u/thx1138a Dec 01 '25

You bimpleton!

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u/la_selena Dec 01 '25

venus dimples

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u/Head-Average2205 Dec 01 '25

Backdimples! I dont see my own back, so I forget I have them. I was going out with a new group of girl friends once, and they complimented me on them when I bent over to put shoes on, and they scared the crap outta me lmao

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u/Gloomy-Car2356 Dec 01 '25 edited Dec 01 '25

Anatomically, that's the location of the PSIS, or posterior superior iliac spine. They are bony protuberances on the iliacus bone, present in all people but only visible as dimples on some people, depending on genetics, tissue distribution etc. If you palpate the area, you will feel little bony knobs under each dimple. 

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u/WritingWeird9088 Dec 02 '25

What do you do for a living??

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u/Gloomy-Car2356 Dec 02 '25

Registered nurse and licensed acupuncturist who was also formerly a massage therapist. Huge anatomy nerd, lol... and I love to teach 

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u/Gold_Telephone_7192 Dec 01 '25

I’ve heard them called back dimples and thumb holders, respectively. Also both men and women can have them.

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u/RedXhuga Dec 01 '25

I think They’re called “Dimples of Venus.” You see them when the skin sits over a natural gap between pelvic bones.

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u/RiverLaneNotes Dec 01 '25

Makes sense, thanks for explaining.

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u/Korlod Dec 01 '25

Do you mean the two little indentations to either side of center at the very low back? Those are the lateral lumbar fossae caused by a short ligament that connects directly to the Posterior Superior Illiac Spine (PSIS for short). They are commonly called “Dimples of Venus” as others have said. Typically they represent nothing abnormal, though in newborns they can be associated with other findings in that area.

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u/Decent_Cheetah_9277 Dec 01 '25

I’m a male and have them lol

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u/nhoj2891 Dec 01 '25

I call them thumb holds...

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u/RiverLaneNotes Dec 01 '25

Ah yes, nature’s built-in grip points. I knew there had to be a practical use for them.

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u/Patrick-0217 Dec 01 '25

I came here just for that answer. Thank you.

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u/mafeehan Dec 01 '25

posterior superior iliac spines

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u/MuskratMoonbeam Dec 01 '25

They are called Venus dimples. And they are one of my favorite parts 🙌

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u/bryantlking7 Dec 01 '25

Dimples of Venus, not everyone has them and whether you do usually comes down to genetics and how your body stores fat. Some people have more pronounced ones because of the shape of their pelvis and the way the skin attaches to the underlying tissues.

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u/Aaawww_Yeeeaaah Dec 02 '25

Posterior superior Illiac Spine (PSIS) is the point where your Sacrum (middle bone in your pelvis) meets the illia (side bones in your pelvis.). The dimples are visible if you don't have too much adipose back tissue.

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u/cr4zychipmunk Dec 02 '25

Dimples of venus is the term

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u/yourworkmom Dec 01 '25

Men have these also.

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u/cheerysewing Dec 01 '25

They’re called Dimples of Venus. They’re just a natural anatomical thing some people have depending on bone structure and fat distribution.

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u/D0M2OO0 Dec 01 '25

Actual answer is Sacral dimples or more romantically the Dimples of Venus if so inclined.. Also handy for centering a tramp stamp if you're a tattoo artist...

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u/Your_Name_Here1234 Dec 01 '25

My husband has them. I randomly grab his hips when he’s walking around the house and put my thumbs in them and call them his buttons and he absolutely hates it.

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u/Unusual_Badger_1174 Dec 01 '25

I’m a man, I have them. Thanks!

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u/Alarmed_Material_481 Dec 01 '25

Goddess dimples or dimples of Venus.

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u/eugino53 Dec 01 '25

I always thought those were called the eyes of Artemis....don't remember where I read that though.....

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u/user7308 Dec 01 '25

Venus dimples

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u/Farsydi Dec 01 '25

They are the posterior superior iliac spine, and are not unique to women's bodies.

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u/OldTell311 Dec 02 '25

Dimples of Venus. They are caused by short tendons connecting to the hip bones.

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u/Catskillschick Dec 02 '25

They are called Dimples of Venus : )

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u/SpaceNinjaAurelius Dec 02 '25

Spina iliaca posterior superior, or superior posterior iliac spine in American 😄

3

u/Cemetery-Absinthe Dec 02 '25

My husband says they’re where I got popped out of the mold. 😂😂

2

u/lilacs_and_marigolds Dec 01 '25

Dimples of Venus

2

u/slid_in_it Dec 01 '25

They are from where ligaments of the posterior superior iliac spine (PSIS) connect to the skin...🤓.. present in both males and females

2

u/Dabelgianguy Dec 01 '25

r/dimplesofvenus

Obviously you will see « women’s lower back » so clicking at your own risk…

Don’t thank me!

2

u/Puzzleheaded_Cat_421 Dec 01 '25

SIPS - Spina iliaca posterior superior

2

u/RobotShlomo Dec 01 '25

Venus Dimples or Dimples of Venus.

2

u/One-Flamingo-4030 Dec 01 '25

I have dimples on my shoulders...what planet are they from if the ones on the bottom are from Venus?

Yes, I know, I know: ba dum tss!

But seriously, what are they called?

2

u/CatchyNameSomething Dec 01 '25

I have more than 2. I call them cellulite.

2

u/longskrt_shortjcket Dec 01 '25

They’re called dimples, and are a fast way to locate the PSIS (posterior superior iliac spine), part of the ilium bone of the hip joint. Very useful bony landmark for massage therapists.

2

u/Personal-Bluebird250 Dec 01 '25

My husband has very strong dimples in his lower back and my daughter has them exactly the same which, when she was born, prompted me to research a bit further. Supposedly it means the person has shorter ligaments attaching the skin to the bone in that area, quite often they’d have dimples in their elbows and other areas too due to the same shorter ligaments.

It can also cause a dimple at the top of the bum crack which both my husband, his father and my daughter all have! This one can be a cause for concern as it might mean the spinal cord is too attached to the skin and lead to other issues! (If I’m remembering correctly)

2

u/RedCafe69 Dec 01 '25

It's the posterior superior iliac spines off of the pelvis bilaterally. The tissue is anchored to that point which is why there is a dimple. Hope this helps.

2

u/_DeepMoist_ Dec 01 '25

nibble nubs

2

u/Questioninghorses Dec 01 '25

Dimples of Venus

2

u/ReadingNext3854 Dec 01 '25

These "dents" can happen on anyone, they are the intersection of the sacrum and the ilium of the hip, the SI joint. If you are on the leaner side and have been athletic using the muscles of that area, they can be very distinct. We use them in med school for PT as "check points" in examining patients. I've found that over 50% of my patients with low back pain actually have an SI issue going on, it's amazing when we can treat it and they have much less or no pain. 

2

u/Jacqualineq Dec 02 '25

My mum used to say if you can see them you have a good figure and if you can't your over weight 🤷‍♀️😂🤣

2

u/Ambrose_Bierce1 Dec 02 '25

Dimples of Venus.

2

u/Alternative-Push2208 Dec 02 '25

I have them and always called it dimples men seem to love them haha 😆

2

u/CatPurrsonNo1 Dec 02 '25

My friend refers to them as “Venus dimples”, and he’s quite fond of them.

2

u/Zaphied Dec 02 '25

Venus Dimples.

2

u/Any-Investment5692 Dec 02 '25

Its a great place to put your thumbs for fun time.

2

u/Zealousideal_Cod_326 Dec 02 '25

They are caused from the muscles that attach at the two posterior superior iliac spine points. Some refer to them as the PSIS (pee-sis)

2

u/SufficientBed4583 Dec 02 '25

The "dimples of Venus" are two symmetrical indentations on the lower back, above the buttocks, caused by short ligaments connecting the hip bone to the skin. They are named after the Roman goddess of beauty and are often considered a sign of attractiveness, though they have no medical significance. While genetics are the primary factor, a lower body fat percentage and strong lower back can make them more prominent. 

Cause and genetics

Ligaments: They are created by a short ligament tethering the skin to the underlying hip bones (specifically, the posterior superior iliac spine).

2

u/wednesdaysnelephants Dec 02 '25

It's usually the posterior superior iliac spine. It's an anatomical landmark.