A tube of tissue sticking out of a cat's anus is a rectal prolapse until proven otherwise, and the clock starts when it appears. Cover it with gauze soaked in saline, keep it moist, do not push it back in, and be at a vet within 2 hours. Tissue that is pink at hour 1 turns dark red by hour 2, purple by hour 3, and black and dry after that, and the difference decides whether the cat keeps that section of bowel.
What you are looking at
A prolapse is a 2 to 5 cm tube of mucosa that protrudes through the anus, looks like a doughnut with a small hole in the middle, and does not stop the cat from straining. It is the rectal lining turned inside out, so it stays warm and wet at first. An intussusception looks similar but usually comes with bloody stool and a palpable thickening; a polyp is a 1 to 2 cm lump on 1 side of the ring rather than a complete circle. A perianal rupture or an abscess sits beside the anus, not in the middle of it.
Why the 2-hour window is not a figure of speech
Mucosa outside the body loses moisture within 20 to 30 minutes and swells as it dries, which makes reduction harder. Blood flow at the narrow point where the tissue crosses the sphincter is compressed. Pink and shiny means viable. Dark red with a loss of sheen means congestion. Purple with a black edge means the surface is already dying. At that point a simple manual reduction can tear the wall, and the cat is looking at a resection under anesthesia instead of a 10-minute procedure.
Do and do not, in the first 30 minutes
- Cover the tissue with 2 to 4 layers of gauze soaked in room-temperature 0.9 percent saline. A clean sanitary pad works for transport if gauze is not in the house.
- Keep it moist the whole way. Re-wet the gauze every 10 to 15 minutes; dry gauze sticks and pulls tissue off when it is removed.
- Do not push it back. The tissue may be an intussusception, the wall may be devitalized, and reduction at home can perforate it.
- Do not use ice, alcohol, hydrogen peroxide, or any human cream. All 3 damage mucosa and make the surgeon's job harder.
- Do not let the cat lick it. Put an Elizabethan collar on for the trip, and keep the cat in a carrier, not on a lap.
Three causes, and the one that is urgent
Straining from diarrhea. Kittens of 4 to 12 weeks, and any cat with Giardia, Tritrichomonas, coccidia, or a heavy tapeworm load, strain 10 to 20 times a day and push mucosa out; a 5-day history of yellow stool is the usual setup. This is the most common cause and the most fixable: a fecal float plus a direct smear answers most of it.
Straining from constipation. Megacolon, a pelvic narrowing after an old fracture, a hairball, or a foreign body produces hard stool and 15 to 30 minutes of unproductive effort in the box. The prolapse here recurs within 7 days unless the stool is softened and the underlying motility problem is treated.
Something inside the rectum. A polyp, a rectal or colonic mass, an intussusception, or, in a queen that has just given birth, dystocia with 1 kitten retained. A polyp or a mass is also why a wound at the anus that will not close in 2 weeks needs a look rather than a cream, the same logic as a wound that will not heal. This group is the reason a prolapse should never be reduced and forgotten: if a mass is pulling the wall out, the prolapse comes back the same day, and a 2 cm mass found at week 1 is a much smaller problem than one found at month 3.
What happens at the clinic
The vet checks color, temperature, and whether a probe passes through the central hole, then reduces the tissue under light sedation with lubricant and steady pressure over 30 to 60 seconds. A purse-string suture is left in place for 3 to 7 days, loose enough to pass stool. Deworming, a stool softener, and a stool-culture or PCR panel follow, with the diet checked against the toxin list if a new food or plant was in the house, and the cat is watched for 24 to 48 hours for re-protrusion. If the tissue is black, necrotic, or will not reduce, the next step is resection and anastomosis under general anesthesia, with 3 to 5 days of hospital care.
Recurrence, and the number that triggers surgery
Recurrence is common within the first 7 days while the straining cause is still active. One recurrence is treated the same way as the first. Two recurrences, or a second prolapse within 14 days, is the usual point where a colopexy is discussed, because repeated stretching scars the sphincter and the cat ends up with a permanent leak. Ask for the fecal panel to be finished before the purse string comes out, not after the second visit.
Daily numbers to record for 14 days
Stool score 1 to 7, where 1 is hard pellets and 7 is liquid, with 3 to 4 being the target. Number of trips to the box per day; more than 5 with little output means the straining is back. Grams of food eaten, and body weight every 3 days. A photo of the anus each morning for 7 days catches a recurrence at 1 cm instead of at 5 cm.
When to go: the tier table
The bottom 3 rows are all emergencies. Do not wait for the tissue to change color before deciding.
| Tier | What you see | Number that decides | Window |
|---|---|---|---|
| Watch | Straining only, no tissue out | Under 5 minutes per attempt | Vet within 24 hours |
| Urgent | Tissue out, pink, cat stable | Under 2 cm, less than 1 hour old | Within 2 hours |
| Emergency | Tissue out, darker, cat licking | 2 to 5 cm, 1 to 2 hours old | Now, under 1 hour |
| Emergency | Purple or black tissue, no sheen | Over 2 hours old | Now, immediate |
| Emergency | Tissue out with vomiting or collapse | Any size with systemic signs | Now, immediate |
The first 3 steps, in order
- Wet 2 to 4 gauze layers with 0.9 percent saline, cover the tissue, and call the clinic while you do it.
- Carry the cat in a carrier with the gauze in place, and re-wet it every 10 to 15 minutes on the way.
- Bring the stool history: how many days of diarrhea, how many trips to the box, and any deworming in the past 30 days.
Frequently asked
Can I push the prolapse back in myself?
No. The tissue may be an intussusception rather than a simple prolapse, the wall may already be devitalized, and pushing can perforate it. Even when reduction succeeds at home, the straining cause is untouched and it protrudes again within hours. Cover it with saline-soaked gauze, keep it wet, and let a vet reduce it under sedation.
How long can a prolapse stay out before it dies?
Mucosa starts losing moisture in 20 to 30 minutes and the compression at the sphincter cuts blood flow. Pink and shiny at hour 1 is viable; purple at hour 3 is compromised; black and dry after 4 hours usually means resection. That is why 2 hours is the target and not a suggestion.
What are the chances it comes back?
High if the diarrhea or constipation is still active, which is why the purse string stays 3 to 7 days and the fecal panel is finished before it comes out. One recurrence is managed like the first. A second recurrence, or another prolapse within 14 days, is when a colopexy is usually discussed.