DefinitionBy Mayo Clinic Staff
A sacral dimple is an indentation, present at birth, in the skin on the lower back. It's usually located just above the crease between the buttocks. Most sacral dimples are harmless and don't require any treatment.
Sacral dimples that are accompanied by a nearby tuft of hair, skin tag or certain types of skin discoloration are sometimes associated with a serious underlying abnormality of the spine or spinal cord. In these instances, your child's doctor may recommend an imaging test. If an abnormality is discovered, treatment depends on the underlying cause.
Oct. 15, 2015
- McKee-Garrett TM. Assessment of the newborn infant. http://www.uptodate.com/home. Accessed July 8, 2015.
- Zywicke HA, et al. Sacral dimples. Pediatrics in Review. 2011;32:109.
- Allan PL, et al. The infant spine. In: Clinical Ultrasound. 3rd ed. 2011. Elsevier Limited. Philadelphia, Pa. https://www.clinicalkey.com/home. Accessed July 8, 2015.
- Kucera JN, et al. The simple sacral dimple: Diagnostic yield of ultrasound in neonates. Pediatric Radiology. 2015;45:211.