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By Mayo Clinic staffTreatment is unnecessary for a simple sacral dimple.
However, if the sacral dimple is deep (extending well below the surface of the skin) or it becomes infected, it may indicate another condition that requires treatment.
Rarely, a sacral dimple indicates a more serious condition, such as spina bifida, a serious birth defect that occurs when the tissue surrounding the developing spinal cord of a fetus doesn't close properly. In these rare instances, treatment depends on the underlying cause and may include surgery to correct or minimize the problem.