A–Z topic · C
Constipation in cats
Quick answer
**Occasional firm stools are common**, but straining without passing stool for **over 48 hours** needs a vet. Obese, senior, and arthritic cats are at higher risk. Repeated constipation can lead to **megacolon** — a stretched, weak colon that is harder to treat. Vomiting with constipation is urgent.
Key takeaways
- Yes — hydration supports normal stool. Many vets recommend increasing moisture through wet food, fountains, or broth added to meals as part of a management plan.
- Large hairballs can contribute to blockage, especially in long-haired cats. Regular grooming and hairball diets may help — ask your vet if constipation recurs.
- Plain cooked pumpkin in small amounts may add fibre — but only use if your vet agrees. It is not a substitute for treatment if your cat has not passed stool for 48 hours.
The full guide
Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.
Frequently Asked Questions
- Does wet food help cat constipation?
- Yes — hydration supports normal stool. Many vets recommend increasing moisture through wet food, fountains, or broth added to meals as part of a management plan.
- Can hairballs cause constipation?
- Large hairballs can contribute to blockage, especially in long-haired cats. Regular grooming and hairball diets may help — ask your vet if constipation recurs.
- Is pumpkin safe for constipated cats?
- Plain cooked pumpkin in small amounts may add fibre — but only use if your vet agrees. It is not a substitute for treatment if your cat has not passed stool for 48 hours.