Back dimples, also known as “Venus dimples,” are small indentations located just above the buttocks. These unique features have fascinated people for centuries and are often considered a mark of beauty and good health.

Medically, these indentations are called the “dimples of Venus.” They appear on either side of the lower back, precisely where the skin is tethered to a bony prominence called the posterior superior iliac spine (PSIS) of the pelvis.

The posterior superior iliac spine is part of the pelvic bone structure and serves as an attachment point for ligaments and muscles. The skin’s connection at this point prevents the soft tissue from fully covering the bone, creating a subtle concave shape or dimple.

Not everyone has these dimples, as their presence largely depends on genetics and body composition. People with low body fat and well-defined musculature tend to have more visible dimples, while they might be less noticeable or absent in others.

Back dimples do not serve any specific physiological function but are often regarded as a sign of good posture and spinal health. They highlight the alignment of the pelvis and spine, sometimes indicating a balanced skeletal structure.

Historically, Venus dimples have been admired in art and culture as symbols of beauty and femininity. Their name derives from Venus, the Roman goddess of love and beauty, emphasizing their aesthetic appeal.

These dimples are completely natural and harmless, requiring no medical attention. Their appearance varies widely among individuals based on body type, muscle tone, and genetic factors.

In summary, back dimples are a fascinating anatomical feature resulting from the unique attachment of skin to pelvic bone structures. While not universal, they are a natural part of human anatomy and often celebrated for their visual appeal.