Imperforate anus

Anorectal malformation; Anal atresia

Imperforate anus is a defect that is present from birth (congenital). The opening to the anus is missing or blocked. The anus is the opening to the rectum through which stools leave the body.

Imperforate anus

Imperforate anus is a malformation of the anorectal region that may occur in several forms. The rectum may end in a blind pouch that does not connect with the colon, or it may have openings to the urethra, bladder, or vagina. A condition of stenosis, or narrowing of the anus, or absence of the anus may be present.

Imperforate anus repair - series

In individuals with a normal anatomy, the large intestine (colon) empties into a pouch-like portion of bowel (rectum). Through complex nerve and muscle structures, the rectum releases stool through the anus out of the body.

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Exams and tests

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Outlook (prognosis)

When to Contact a Medical Professional

Prevention