Urinary blockage in cats: an emergency measured in hours

A male cat going in and out of the litter tray, straining but producing nothing, cannot wait until morning. Often mistaken for constipation, this can be fatal within hours.

Published

This is one of the situations where vets most often say "I wish you had come two hours earlier". The reason is understandable: at first glance the signs look like constipation, and most people think it can wait until morning.

It cannot. With a complete blockage the kidneys cannot empty urine, potassium rises in the blood and the heart rhythm is affected. This is a process measured in hours.

The signs

  • Going in and out of the litter tray repeatedly, producing little or nothing each time
  • Vocalising or crying while straining
  • A tense abdomen that is painful to touch
  • Constant licking of the genital area
  • Loss of appetite, vomiting, hiding, unresponsiveness
  • Blood in the litter or drops of urine around the house

The critical distinction: if the animal is straining but nothing comes out, this is not something to write off as constipation. From the outside the two look very similar; their outcomes do not.

Who is more at risk?

Markedly more common in male cats, whose narrower urethra blocks more easily. Higher risk is discussed for neutered, overweight, inactive cats and those fed mainly on dry food. Low water intake also contributes.

What not to do

  • Do not press on the abdomen — the bladder can rupture.
  • Do not give human painkillers. Paracetamol is lethal to cats; so is ibuprofen.
  • Do not try "herbal" remedies or mixtures suggested online.
  • Do not wait for morning. That is the one real piece of advice in this article.

If it happens at night in Alanya

Most clinics close in the evening. The 24/7 filter in the directory gathers the listings that report being open round the clock. Call before you set off: describing the situation lets them prepare while you are on the way, and in this condition those minutes count.

Put the cat in a carrier; a cat in pain is hard to hold and may bite.

After it is over

This condition can recur. Increasing water intake, reviewing the diet and seemingly small things like the number of litter trays all come up when discussing the risk of recurrence. Which of them suits your cat is for the vet to decide.

This page is general information and no substitute for an examination. Delay in this condition can be fatal; if you suspect it, stop reading and call a clinic.