Those small, symmetrical indentations just above the buttocks—often visible on the lower back—are commonly known as “dimples of Venus.” While they are frequently admired for their appearance, especially in art and fitness culture, they also have a clear anatomical explanation. In most cases, they are completely harmless. However, in rare situations, similar dimples can signal underlying medical conditions.
Here’s what these lower-back dimples really are, why they appear, and when they deserve attention.
What Are “Dimples of Venus”?
The anatomical term for dimples of Venus is posterior superior iliac spine (PSIS) dimples.
Location:
They appear on the lower back, just above the crease of the buttocks, on either side of the spine.
Why they form:
These dimples occur where strong ligaments connect the skin to the pelvic bone and sacrum (the triangular bone at the base of the spine). In people with certain body structures—especially those with lower body fat or well-defined musculature—the skin pulls inward at these attachment points, creating visible indentations.
A historical note:
They are named after Venus, the Roman goddess of love and beauty. Renaissance artists often highlighted these dimples as symbols of fertility, health, and physical attractiveness.
Why Dimples of Venus Are Usually Harmless
For the vast majority of people, dimples of Venus are purely a natural anatomical feature. They are:
- Genetic and often inherited
- More visible in people with lower body fat
- Not caused by lifestyle, exercise, or posture
- Not linked to pain or dysfunction
Many fitness professionals point out that these dimples often become more noticeable with improved muscle tone, but they are not a sign of fitness or health on their own.
Simply put, if you have them and feel no pain or discomfort, there is usually nothing to worry about.
Are Dimples of Venus Linked to Any Benefits?
While there is no medical advantage directly tied to having these dimples, some studies suggest a possible association with good blood circulation in the pelvic area. This is one reason they are sometimes mentioned in discussions about sexual health, although these claims are more observational than scientific.
It is important to note that having—or not having—dimples of Venus does not determine fertility, strength, or overall health.
When Lower-Back Dimples Might Need Attention
Although dimples of Venus in adults are almost always harmless, sacral dimples in infants or unusual dimples in adults can occasionally indicate medical concerns.
You should consult a healthcare professional if dimples are accompanied by:
- Pain or tenderness
- Swelling or redness
- Fluid discharge
- Hair tufts, skin discoloration, or deep pits
- Numbness, weakness, or mobility issues
In rare cases, atypical sacral dimples may be associated with spinal abnormalities, such as spina bifida occulta. Again, this is uncommon and usually identified early in life.
The Bottom Line
Dimples of Venus are a normal, natural variation of human anatomy. For most people, they are simply a physical trait influenced by genetics and body structure—and nothing more.
If your lower-back dimples are symmetrical, painless, and unchanged over time, they are almost certainly harmless. However, if you ever notice discomfort or unusual changes, a medical checkup can provide reassurance.
In short, these dimples are far more about anatomy than mystery—and for most people, they’re just another unique feature of the human body.
