Quick answer: If you notice swelling, blood, or a lump near your cat’s anus, do not assume it is a hemorrhoid. Human-type hemorrhoids are not a typical diagnosis in cats. Similar-looking signs may be caused by anal-sac disease, constipation, rectal inflammation, a polyp, injury, or rectal prolapse. A veterinarian needs to examine the area to identify the cause and choose safe treatment.
Can cats get hemorrhoids?
The word “hemorrhoid” describes swollen blood vessels around the anus or lower rectum in people. Cat owners sometimes use the term for any red or swollen tissue near a cat’s anus, but veterinary references focus on other anorectal conditions in cats. The appearance alone cannot tell you what is wrong. Avoid treating your cat with a human hemorrhoid cream or suppository: human products may be inappropriate or harmful to pets.
Common causes of swelling or bleeding near a cat’s anus
- Anal-sac problems: The glands beside the anus can become impacted, infected, or abscessed. A cat may scoot, lick the area, strain, or have a painful swelling or discharge.
- Constipation or straining: Hard stool can cause discomfort and sometimes bleeding. Repeated straining also deserves investigation for urinary problems.
- Rectal prolapse: Pink or red tissue protruding from the anus can be rectal tissue. This requires prompt veterinary care; exposed tissue can become damaged.
- Inflammation, parasites, or infection: These can cause diarrhea, mucus, blood, and irritation.
- Polyps, masses, or injuries: Less common but important causes that may need testing or treatment.
Signs to record before your appointment
Note whether blood is on the stool, mixed with stool, or coming from the skin near the anus. Look for swelling, licking, scooting, painful defecation, diarrhea, constipation, or a visible mass. Take a photo if it can be done without distressing the cat. Tell your veterinarian about any change in appetite, behavior, weight, or litter-box habits.
When is it an emergency?
Seek urgent veterinary care if tissue is protruding from the anus, bleeding is heavy, your cat is weak or in significant pain, or vomiting and severe diarrhea accompany the problem. A cat repeatedly straining in the litter box with little or no urine—especially a male cat—may have a urinary obstruction, which is an emergency. Do not assume the cat is merely constipated.
What will the veterinarian do?
The veterinarian may examine the anal sacs and rectal area, assess hydration and abdominal discomfort, and recommend a fecal test or other diagnostics based on the signs. Treatment depends on the diagnosis. An impacted anal sac may need professional expression; infection or an abscess may need additional treatment. Constipation may require a tailored plan, while a rectal prolapse can require prompt procedures or surgery. There is no single medication that treats all of these conditions.
What you can do safely at home
Keep the litter box clean so you can monitor stool and urine. Provide fresh water and your cat’s usual appropriate diet. Do not squeeze a painful swelling, attempt to push protruding tissue back inside, use an enema, or apply human creams without veterinary instruction. If your cat seems uncomfortable, call the clinic for advice on how quickly it should be examined.
Can diet help prevent a recurrence?
For some diagnosed conditions, a veterinarian may recommend changes to water intake, food texture, fiber, or other treatment. The right approach depends on whether the underlying problem is constipation, diarrhea, anal-sac disease, or something else. Do not add laxatives or fiber supplements without guidance, particularly when a blockage has not been ruled out.
Questions to ask your veterinarian
- Is the swelling coming from the anal sacs, rectum, or surrounding skin?
- Could the straining be related to a urinary problem?
- What tests or treatments are needed, and what warning signs require immediate follow-up?
- Should we adjust diet, hydration, or litter-box monitoring after the diagnosis?
Sources
- Merck Veterinary Manual: Disorders of the Rectum and Anus in Cats.
- Merck Veterinary Manual: Rectal Prolapse in Animals.
- VCA Animal Hospitals: Anal Sac Disease in Cats.
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.