Signs and symptoms of colitis in dogs
The most commonly seen symptoms of colitis in dogs are some form of diarrhoea. The affected dog will produce semi-formed or liquid faeces. The owner may see mucus in the faeces, blood, or a combination of the two. The dog will be going more often than normal, showing increased urgency, but only producing a little each time and having difficulty in going, with obvious straining.
Bouts of diarrhoea can be mixed with constipation. Excessive gassiness might be seen. A painful abdomen is likely, with the dog showing a hunched position, back arched, and reluctant to have the area touched. If this is an ongoing problem, the dog can have a poor, dull coat, a lack of appetite, which can lead to weight loss, an air of depression and lethargy.