Most healthy cats have a bowel movement about once a day. If your cat hasn’t gone in two or more days, is straining in the litter box, or is passing small, hard stools, there are several things you can do at home to get things moving. The strategies below range from simple dietary changes to environmental tweaks, and most can be started today.
Know What’s Normal First
A study in the Journal of Feline Medicine and Surgery tracked healthy cats over 30 days and found they averaged 1.07 bowel movements per day. Over an entire month, healthy cats had only two total days without defecating. So if your cat is regularly skipping days, something is off.
Constipation in cats is generally defined as fewer than three bowel movements per week, or difficult passage of hard, dry stool. Occasional mild constipation can often be resolved at home, but a cat that hasn’t passed stool in three or more days, is vomiting, refusing food, or appears lethargic needs veterinary attention. There’s a more serious condition called obstipation where the colon becomes so packed with stool that the cat physically cannot pass it, and that requires professional treatment.
Increase Water Intake
Dehydration is one of the most common contributors to hard, dry stools in cats. Cats evolved as desert animals and tend to drink less water than they need, especially on a dry kibble diet. Switching from dry food to wet (canned) food is one of the most effective single changes you can make, since canned food is roughly 75-80% water compared to about 10% in kibble.
Beyond food, you can encourage drinking by placing multiple water bowls around the house, using a pet water fountain (many cats prefer running water), and making sure the water is fresh daily. Adding a small amount of warm water or low-sodium chicken broth to your cat’s food is another easy way to sneak in extra fluids.
Add Fiber to the Diet
Fiber draws water into the stool and adds bulk, which helps stimulate the colon to contract and push things along. There are two simple, widely available options:
- Canned pumpkin: Use plain, unsweetened pumpkin puree (not pie filling). Start with about one teaspoon mixed into your cat’s food once or twice daily.
- Psyllium husk: The Lort Smith Animal Hospital recommends 1/4 to 1/2 teaspoon of psyllium husk or bran mixed into food. Start at the lower end and increase gradually, since too much fiber too fast can cause gas or bloating.
Commercial high-fiber cat foods are also available and can be a good long-term option for cats that get constipated repeatedly. Whichever fiber source you choose, extra water intake is important alongside it. Fiber without adequate hydration can actually make constipation worse.
Try a Stool Softener
Polyethylene glycol 3350, sold over the counter as MiraLAX, is commonly used for feline constipation. The Merck Veterinary Manual lists a typical dose of 1/8 to 1/4 teaspoon mixed into food every 12 hours, adjusted until the stool reaches a soft consistency. It works by pulling water into the intestines to soften the stool rather than by stimulating the gut directly.
That said, this is worth confirming with your vet before starting, particularly if your cat has kidney disease, is on other medications, or is a kitten. Your vet can also rule out an underlying cause and recommend the right approach for your cat’s specific situation.
Encourage Physical Activity
Movement helps the gut move. The muscles lining the colon generate rhythmic contractions called slow waves, and physical activity stimulates these contractions to push stool forward. A sedentary cat, especially an older or overweight one, is more prone to sluggish bowels.
Interactive play sessions of 10 to 15 minutes a few times a day can make a real difference. Wand toys, laser pointers, and crinkle balls all work. Climbing structures and cat trees encourage jumping and stretching, which engages the abdominal muscles. Even just getting your cat to walk from room to room more frequently helps. For cats that are reluctant to move, placing food or treats in different locations throughout the house creates low-effort motivation.
Gentle Abdominal Massage
Light belly massage can help stimulate intestinal movement. With your cat lying on their side or in a relaxed position, use your fingertips to make slow, gentle circular motions along the belly, moving in the direction from the ribs toward the hind legs. This follows the natural path of the colon. Keep the pressure light, similar to what you’d use to pet a cat.
Veterinary professionals use abdominal massage as part of treating severe constipation, but at home you should keep it gentle. Aggressive pressing can be harmful, and a very firm mass in the belly could be something other than stool. If your cat tenses, cries, or tries to escape, stop immediately.
Optimize the Litter Box Setup
This one is easy to overlook, but a cat that avoids the litter box will hold its stool, and holding stool allows more water to be absorbed in the colon, making it harder and drier. Texas A&M’s veterinary team recommends several litter box best practices that directly affect how willing your cat is to go:
- Size: Many litter boxes are too small. Your cat should be able to turn around and dig comfortably.
- Type: Uncovered boxes are generally preferred. Covered boxes can make cats feel trapped and unsafe.
- Location: Place boxes in quiet areas away from foot traffic, appliances, and loud machinery.
- Litter depth: About two inches of standard clumping litter is ideal. Some cats have strong preferences for specific textures, so try a few types if your cat seems reluctant.
- Cleanliness: Scoop at least once daily. A dirty box is a strong deterrent.
- Number: The standard recommendation is one box per cat, plus one extra.
Offering a variety of box shapes, sizes, and locations lets your cat find what works best. A cat that uses its box willingly and frequently is far less likely to develop constipation from stool retention.
Consider Probiotics
Probiotics are a newer addition to the constipation toolkit, but there’s growing evidence they can help. A multi-strain probiotic blend called SLAB51, which contains several species of lactobacilli and bifidobacteria, was shown to markedly improve symptoms of constipation and even idiopathic megacolon in cats. Other strains, including certain types of Lactobacillus and Bacillus, have been shown to improve fecal quality and regularity in cats, though most of the published research has focused on diarrhea rather than constipation specifically.
Feline-specific probiotic supplements are available at pet stores and through veterinarians. Look for products that list specific bacterial strains and colony-forming unit (CFU) counts on the label. These are generally safe to use alongside dietary changes and can support overall gut health even beyond the constipation issue.
When Home Remedies Aren’t Enough
If your cat hasn’t had a bowel movement in three days despite trying these approaches, or if you notice vomiting, complete loss of appetite, visible straining with no results, or a swollen and painful abdomen, this has moved beyond what home care can address. Severe constipation can progress to obstipation, where the colon becomes so distended with impacted stool that it loses its ability to contract. At that point, a veterinarian needs to manually remove the stool under sedation using a combination of lubricated enemas and careful abdominal manipulation.
Cats with recurring constipation often have an underlying cause worth investigating. Kidney disease, for example, leads to chronic dehydration and measurably fewer bowel movements. Cats with kidney disease in the study mentioned earlier averaged only 0.86 bowel movements per day compared to 1.07 in healthy cats. Other common culprits include thyroid problems, pelvic injuries that narrow the passage, and certain pain medications. Identifying and treating the root cause is the most effective long-term solution.