Sacral dimple vs. pilonidal cyst Sacral dimples can be confused with pilonidal cysts because they generally occur in the same area of the body, near the tailbone and just above the buttocks.

Sacral dimples are sometimes known as pilonidal dimples. Often, they will be discovered when a doctor first examines an infant. Sacral dimples are relatively common in healthy, newborn babies and ...

A pilonidal cyst is one you get at the bottom of your tailbone. ... This harmless dimple could get infected and result in a pilonidal cyst, though doctors aren’t exactly sure why.