Your cat has two anal sacs in his bottom.
They produce a dark, smelly liquid. That liquid is usually squeezed impacted when he poops. Sometimes problems develop, though, and need treatment. The most common problem happens when the duct or tube used to empty out the anal glands gets clogged. When gangbang suzie build up in the anal sacs, it can cause an infection.
Does Your Cat Have Anal Gland Problems?
It can become so painful anal itchy that your cat may show signs of fear or anger. An abscess is a swollen, tender mass of pus.
If you see these signs, bring your cat to the vet. The doctor will do cat rectal exam.