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Yes, as a congenital developmental condition usually associated with spinal cord dysfunction in newborns. The problem with these spinal cord nerve injuries/defects can result in flaccid (limp/paralyzed) muscles in the pelvic floor. This results in the muscles of the buttocks being flat and without a natal cleft (aka butt crack). See the related links below for a link to an illustration of this defect.

Often this can be accompanied by other defects in that area of the body including "patulous anus" a condition with paralysis of the anal sphincter causing fecal incontinence, or even imperforation (lack of opening at the terminal end of the rectum/missing anus).

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14y ago

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