Malformation of the Anus

Condition Overview

Imperforate anus is a rare congenital condition in which the anus, or the anus and the rectum, do not develop. In female puppies there may be a passage between the colon and the vagina called a rectovaginal fistula.

Symptoms

Newborn puppies without an anus are unable to pass gas or meconium - the dark green fecal material that is usually excreted at birth. Abdominal distention and vomiting appear during the first 24 hours. If the colon opens into the vagina, gas and stool may pass out through the vulva, temporarily averting a bowel obstruction.

All symptoms +

Causes

This is a birth defect.

Diagnosis

Diagnosis is made by examining symptoms.

Treatment

Imperforate anus and rectovaginal fistula require surgical correction or the pups will not survive.

Prevention

There is no prevention for this condition.

Support

Please contact your veterinarian for treatment if you have a pup with this condition.