Why Is My Cat Constipated
This page is educational reference material for preparing questions. A licensed veterinarian examines the animal, makes the diagnosis, and sets the treatment.
Cat constipation causes: dehydration, megacolon, hairballs, and kidney disease. Safe home remedies and when to see a vet.
Understanding This Symptom
A subtle shift in a cat’s behaviour is often the first and only early warning. Catching it depends entirely on knowing their baseline. This resource covers the most common causes, warning signs that indicate an emergency, and what you can expect at the veterinarian.
When to Seek Emergency Care
If you see laboured breathing, seizures, collapse, uncontrolled bleeding, or sudden rear-limb paralysis, go straight to an emergency clinic. Observation is not a safe plan with these signs.
Common Causes
Less Serious Causes
More Serious Causes
- Poisoning or toxic exposure
What to Watch For
- Lethargy or reluctance to move or play
- Vomiting, diarrhea, or changes in stool
Home Care and First Steps
Veterinary Diagnosis
Your veterinarian will typically:
- Perform a thorough physical examination
Treatment Options
Prevention
Long-Term Management
When to Get a Second Opinion
Related Symptom Guides
- Why Is My Cat Not Eating?
- Why Is My Cat Vomiting?
- Why Is My Cat Hiding?
- Why Is My Cat Sneezing?
- Why Is My Cat Losing Weight?
Should I go to the emergency vet?
Go now if a male cat is straining and no urine is obvious. A blockage is fatal within a day or two. A cat that is clearly passing urine and is only late with stool can be seen the same day if it is vomiting or painful, and this week if it is bright.
How much will treatment cost?
Straining in the litter box needs an exam to separate constipation from a urinary blockage. Male cats that produce little or no urine are an emergency. Films and fluids are the costs when the colon is packed or the bladder is huge. Ask which problem the quote addresses.
Can I treat this at home?
Note whether any urine or any stool appeared, and how long the cat has been in and out of the box. Do not give a human laxative or an enema. A male cat crying in the box should be on the way to the clinic.