Malformation of the Anus
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.
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.
This is a birth defect.
Diagnosis is made by examining symptoms.
Imperforate anus and rectovaginal fistula require surgical correction or the pups will not survive.
There is no prevention for this condition.
Please contact your veterinarian for treatment if you have a pup with this condition.
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