Sacral dimple

A sacral dimple (also termed pilonidal dimple or spinal dimple)[1] 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 common, occurring in up to 4% of the population.[1] The majority of these dimples are minor and do not represent any underlying disease;[1] 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. Sacral dimples are usually spotted in post-natal checks by a pediatrician, who will check:

Additionally, this can be indicative of a possible kidney problem, which is then checked by an ultrasound.

See also


  1. 1 2 3 Flannigan, edited by Christopher (2011). A practical guide to managing paediatric problems on the postnatal wards. Oxford: Radcliffe Pub. pp. 43, 44. ISBN 9781846195068.
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