Blocked Cats – What Every Cat Owner Needs To Know

Written by Dr. Josie Gollan

It is often said that you do not know what you do not know. This is one condition I believe every cat owner should be aware of, because recognising it early could save your cat’s life.

A common emergency vets see

In the veterinary world, emergencies rarely present at convenient times. We often see what we jokingly call “Friday night specials”, where a very unwell patient arrives just before closing.

One of the most common of these emergencies is the blocked cat, a condition many owners are unaware of but should absolutely know about.

What it means when a cat is blocked

A blocked cat is experiencing a partial or complete obstruction of the urinary tract, preventing them from passing urine.

This is a painful and life-threatening condition. If left untreated, it can lead to severe toxic effects on the body and become fatal within a matter of days.

What causes urinary obstruction

There are several possible causes, including urinary crystals, stones, mucus, and inflammatory by-products. Some cases involve more than one of these factors.

While both male and female cats can be affected, males are significantly more at risk due to their longer and narrower urethra. If you have a male cat, changes in toileting behaviour should always be taken seriously.

Signs your cat may be blocked

Recognising the signs early and acting quickly is critical for a good outcome. Watch for:

It is important to note that this condition can sometimes be mistaken for constipation, so keeping a close eye on litter tray behavior is essential.

What treatment involves

Treatment requires passing a urinary catheter to relieve the blockage and allow urine to flow.

The urine is analysed to understand the underlying cause, and supportive care is provided to manage pain, correct imbalances, and support kidney function.

Most cats will need to stay in hospital for a few days until they are urinating comfortably on their own. In more severe or recurrent cases, surgery may be required.

How to reduce the risk

While not all cases can be prevented, there are steps you can take to lower the risk:

Be prepared to act quickly

Now that you know what to look for, you are better equipped to act if something seems wrong.

If you suspect your cat may be blocked, contact your vet immediately. Acting quickly can make all the difference, even if it means becoming a “Friday night special”.