Those small indentations just above the buttocks—commonly known as “back dimples” or “Venus dimples”—are more than a unique physical trait.

They are an interesting part of human anatomy rooted in your skeletal structure.

Medically referred to as dimples of Venus, these symmetrical indentations sit on the lower back where the skin attaches directly to a bony landmark called the posterior superior iliac spine of the pelvis.

This attachment pulls the skin inward slightly, forming a natural dimple.

The result is a visible dip that doesn’t involve muscle or fat but rather the way skin and bone are connected in that region.

Some people are naturally born with Venus dimples, while others may not have them due to differences in bone structure or body fat distribution. These dimples are typically more noticeable in people with lower body fat percentages.

Unlike muscle tone, Venus dimples can’t be developed through exercise since they are not formed by muscle but by skeletal structure.

They’re often seen as a sign of beauty and symmetry in many cultures, which is why they’ve gained popularity in fitness and fashion circles.

Despite the aesthetic attention, Venus dimples have no known medical function or health significance.

So, if you have them—enjoy the natural quirk. And if you don’t, know that it’s just another normal variation of the human body’s unique structure.