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Rectal polyps are uncommon growths from the lining of a cat’s rectum and are usually benign. Straining to defecate, blood in the feces, and diarrhea can occur, but none of these signs proves that a cat has a polyp. A veterinarian may need to examine the rectum, view it with an endoscope, and analyze a tissue sample. If tissue is sticking out of your cat’s anus, seek prompt veterinary assessment: a rectal prolapse or another intestinal problem can look similar.
What are rectal polyps in cats?
A rectal polyp is a localized growth arising from the rectal lining. The Merck Veterinary Manual describes these growths as infrequent in cats and says they are usually benign. Infrequent does not mean impossible, but there is no population prevalence figure established in the cited veterinary reference.
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The available evidence does not establish a cause, breed predisposition, or specific risk factor for ordinary feline rectal polyps. A published report of one cat with a polyp in the caecum (part of the large intestine), intussusception, and concurrent liver cancer describes that individual case; it does not show what causes rectal polyps or how common they are.
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Possible signs include straining to defecate, blood in the feces, and diarrhea, according to the Merck Veterinary Manual. A polyp may sometimes protrude from the anus. These signs overlap with other conditions, so they are reasons to arrange veterinary assessment—not a way to diagnose a polyp at home.
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- Straining or repeated effort to pass stool
- Blood in the feces
- Diarrhea
- Tissue visible at the anus
If you notice a change in your cat’s bowel movements or blood in the stool, contact your veterinarian for guidance. Visible protruding tissue warrants prompt assessment because its appearance alone cannot reliably distinguish a polyp from prolapse or another lesion.
How does a vet diagnose a rectal polyp?
Diagnosis may involve more than looking at the outside of the anus. The veterinarian chooses the examination based on the cat and the suspected lesion.
- Rectal examination: The veterinarian may be able to feel a polyp during an examination.
- Endoscopy: If needed, an endoscope can help the veterinarian see the lesion.
- Microscopic analysis: A tissue sample may be sent to a laboratory to confirm the diagnosis. The Merck Veterinary Manual explains that microscopic analysis of a sample can confirm whether the growth is a polyp.
Because straining, blood, and diarrhea have multiple possible causes, examination and any recommended testing help determine what is actually causing the signs.
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A polyp is a localized growth. Rectal prolapse occurs when one or more layers of the rectum protrude through the anus. Both can appear as tissue at the opening, and an owner should not try to identify the condition by appearance alone.
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| Feature | Rectal polyp | Rectal prolapse |
|---|---|---|
| What it is | A growth from the rectal lining | One or more layers of the rectum protruding through the anus |
| How it is assessed | Rectal examination; endoscopy or tissue analysis may be needed | Prompt veterinary examination of the protruding tissue |
| What to do | Arrange veterinary assessment for concerning bowel signs | Seek prompt veterinary assessment for any protruding tissue |
Rectal prolapse can be incomplete or complete and may be associated with intestinal, anorectal, or urinary disease. Its management is a veterinary matter and can involve treating the cause, replacing the tissue under anesthesia, temporary sutures, or surgery when tissue is dead or cannot be repositioned. Do not attempt to push protruding tissue back yourself.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How are rectal polyps treated?
Treatment depends on the veterinarian’s findings and the lesion’s features. Surgical removal is commonly described. The Merck Veterinary Manual reports that removal is usually followed by rapid recovery and lengthy survival, but that general observation cannot predict an individual cat’s recovery or guarantee a cure.
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The evidence cited here does not support a home remedy or over-the-counter product as treatment or prevention. A veterinarian can explain the appropriate approach after examining the cat and, when needed, assessing the tissue.
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When should I seek veterinary care?
- Contact your veterinarian about straining, blood in the feces, or diarrhea; these signs can have several causes and need assessment.
- Seek prompt assessment if any tissue is sticking out of your cat’s anus. A prolapse or another intestinal lesion may resemble a polyp.
- Do not attempt home treatment for protruding tissue; prolapse care may require veterinary procedures.
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