My cat is straining to pee or not peeing

Often an emergency — act fast

A blocked cat (urethral obstruction) is one of the true 'go now' emergencies, especially in male cats. If your cat is straining, crying in the litter box, or producing little to no urine, seek emergency care immediately.

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🔴 When it's an emergency

●Straining in the litter box with little or no urine
●Crying out, frequent trips to the box, licking the genitals
●Vomiting, hiding, or lethargy alongside straining
●A hard, painful belly

🟢 Usually okay to monitor

●This is not a wait-and-see symptom — call an emergency vet

Frequently asked

Why is a blocked cat an emergency?

If a cat can't pass urine, toxins build up and the bladder can rupture — this can be fatal within a day or two. Male cats are especially at risk. Seek emergency care immediately.

How do I know if my cat is blocked?

Frequent trips to the litter box with little/no urine, straining or crying, licking the genitals, vomiting, or hiding. When in doubt, treat it as an emergency.

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Go deeper

Condition

Urinary blockage (FLUTD)

Pocket Vet editorial team

Written and maintained by the Pocket Vet editorial team using authoritative veterinary sources. Reviewed June 8, 2026. This guide is informational only and not a substitute for professional veterinary care — see our editorial & safety policy. When in doubt, contact your vet; in a true emergency, go to an emergency clinic immediately.

Sources