Sacral dimple
A sacral dimple is a small depression in the skin, located just above the buttocks.The name comes from the sacrum, the bone at the end of the spine, over which the dimples are found.
Sacral dimples are rare, occurring in up to 4% of the population. The majority of these dimples are minor and do not represent any underlying disease; however, the minority may be a sign of disease, notably spina bifida. Even so, this is usually the spina bifida occulta form, which is the least serious kind. Additionally, a sacral dimple may be indicative of a possible kidney problem that can be checked with an ultrasound.
Sacral dimples are usually spotted in post-natal checks by a pediatrician, who will check:
