What to Do If Your Cat Stops Urinating or Can’t Pass Urine

Last updated: 3 August 2025

Step 1: Recognise the Symptoms

Watch for signs such as frequent trips to the litter box, straining without producing urine, crying out in pain, a swollen belly, hiding, or general distress. If your cat is completely unable to pass urine, this is a medical emergency.

Step 2: Don't Delay — Call the Vet Immediately

A blocked bladder can rupture or cause kidney failure within 24–48 hours. Call your vet right away or take your cat to the nearest emergency vet clinic. Do not try to treat it at home.

Step 3: Transport Your Cat Safely

Use a secure carrier and keep your cat calm. Avoid pressing on their belly or lower abdomen, as it may be painful or cause damage if the bladder is enlarged.

Step 4: Understand the Treatment

At the vet, your cat will likely be sedated and have a catheter inserted to drain the bladder. They may also receive IV fluids, pain relief, and antibiotics. In some cases, surgery is required. Your cat may need to stay at the clinic for a few days.

Step 5: Plan for Aftercare and Prevention

After a blockage, your vet may recommend a special urinary diet, increased water intake, or medication. Regular vet check-ups and monitoring your cat’s litter habits are key to preventing recurrence.

Frequently Asked Questions

Common causes include urinary crystals, inflammation (FLUTD), stress, or a narrow urethra (especially in male cats).
Yes. If a cat cannot urinate for more than 24 hours, toxins build up in the body, which can be fatal without emergency treatment.
Follow your vet’s advice. Feed a urinary health diet, keep stress low, ensure access to clean water, and monitor litter box use closely.