If You Have These Two "Dimples" on Your Lower Back, Here's What They Mean

When They Are Entirely Normal (The Vast Majority of Cases)

For most people, these dimples are a harmless anatomical variation—simply part of the body's natural landscape. Characteristics of benign sacral dimples include:

Appearance during adolescence as the pelvis matures and body composition shifts

No associated pain, tenderness, or discomfort

Symmetrical, shallow indentations with smooth, unremarkable skin

Absence of accompanying features such as unusual hair growth, discoloration, swelling, or skin tags

When these criteria are met, no evaluation or intervention is necessary. They are simply a quiet signature of your unique structure.

When to Pay Attention (Rare but Important Considerations)

While sacral dimples in adults are almost always benign, in infants a single, deep, or off-center dimple can occasionally signal an underlying spinal condition. These may include:

Spina bifida occulta: A mild, often asymptomatic form of spinal development variation

Tethered cord syndrome: A condition where the spinal cord is abnormally attached, potentially affecting nerve function

Dermal sinus tracts: Rare abnormal channels connecting the skin surface to deeper tissues

In infants, certain features warrant medical evaluation:

A dimple larger than 5 millimeters in diameter

Location above the natural crease of the buttocks

Presence of associated findings such as a tuft of hair, skin discoloration, swelling, or a small skin tag

It is important to emphasize: in adolescents and adults, sacral dimples that have been present since childhood and remain unchanged are overwhelmingly benign. New, painful, or asymmetrical changes in adulthood should be discussed with a healthcare provider, but longstanding, stable dimples are almost certainly a normal anatomical feature.

A Gentle Perspective

"Your body's marks aren't flaws—they're maps of your uniqueness."

Unless you are noticing new changes, persistent pain, or neurological symptoms such as leg weakness, numbness, or changes in bladder or bowel function, those dimples are simply a quiet testament to your individual anatomy—nothing to correct, only to understand and accept.

If uncertainty ever arises, a brief consultation with a physician can provide reassurance. But for most people, these subtle indentations are exactly what tradition has long suggested: a small, natural gift, quietly elegant and entirely harmless.