It may seem minor, but chronic constipation in cats can progress to megacolon — a serious condition where the colon loses the ability to push waste through. Early intervention matters.
Some cats naturally go every other day. If energy and appetite are normal, monitor until the next day.
Likely caused by dehydration or inactivity. Try adding wet food and extra water sources before calling the vet.
Stool is drying out and becoming difficult to pass. Repeated episodes warrant a vet consultation.
Stool may be compacted in the colon. Vomiting alongside constipation means the vet needs to intervene with an enema or medication.
Severe constipation — also needs to be differentiated from urinary blockage. See a vet immediately.
Repeated episodes risk progression to megacolon, where the colon becomes permanently dilated. Treat early and consistently.
Cat constipation stems from lifestyle factors (insufficient water, lack of fiber, little exercise, swallowed hair, obesity, stress, inadequate litter access) as well as medical causes (nerve damage, pelvic narrowing from an old fracture, tumors).
Senior cats are particularly prone — intestinal motility naturally slows with age, and seniors tend to drink less. Cats with concurrent kidney disease are at compounded risk due to dehydration.
Chronic constipation leads to megacolon — permanent dilation of the colon that makes self-defecation impossible. Treatment then requires regular enemas and, in severe cases, surgical colon resection. Prevention through early management is critical.
Use CatsMe's daily log to track how often your cat uses the litter box and what the output looks like. A clear record of 'no bowel movement for 3 days' gives your vet exactly the context they need to make fast, accurate decisions.
Get Started FreeA small amount (about 1/4 teaspoon) mixed into food may help lubricate the stool, but it's not a cure. The first priority should be increasing moisture intake and switching to wet food. See a vet if constipation persists beyond 3 days.
Wet food with high moisture content is the most effective dietary change. High-fiber prescription diets (including psyllium-containing options) are also helpful. Ask your vet to recommend a specific GI support food.
Both cause straining in the litter box. In constipation, small amounts of hard stool may still pass. In a urinary blockage, no urine comes out at all. If you're not sure, don't wait — see a vet, especially if your cat is male.