Prolapsed Rectum In Kittens

If you see a red cylindrical mass coming out from your cat or dog’s behind, take them to the vet immediately.


The red bulge is the kitten’s rectum protruding through the anus. This is usually caused by chronic diarrhea or persistent straining due to constipation. This kitten was seen at AMK Veterinary Surgery.

The rectum is the final part of the large intestine that terminates at the anus. Your cat may develop rectal or anal prolapse if it is suffering from digestive disorders that cause chronic constipation or diarrhea. Rectal prolapse can also be caused by:

  • presence of worms or other intestinal parasites (common in kittens and puppies)
  • inflammation of the intestines
  • inflammation of the bladder
  • rectal or anal tumours

While the vet is able to place the prolapsed tissue back into the anus, the underlying cause should be identified and treated to prevent recurrence of prolapse.


The prolapsed tissue will be gently massaged with lubricating gels or glucose solutions to reduce swelling & then placed back into the kitten’s anus.


Dr Tricia Ling placed a purse-string suture around the anus to narrow the opening & prevent the tissue from prolapsing again. The syringe is in place to ensure the anal opening is not sutured too tightly, leaving space for stool to pass out normally.


Sutures will be removed 3 days later. Stool softeners may be prescribed to prevent straining during defecation.

Animals with rectal prolapse should be taken to the vet as soon as possible. Left untreated, the prolapsed tissue may become traumatised, diseased and eventually die off.

Keep your kittens parasite free with routine deworming and tick and flea prevention. Provide plenty of fresh water to prevent dehydration and constipation. Watch out for any signs of digestive, gastrointestinal or urinary tract problems. Recurrent prolapse may require surgery (colopexy).