Diarrhea is an intestinal disturbance characterized by the passage of abnormally loose or watery stools (feces). It is not a disease in itself, but a symptom of an underlying disease or disorder. It can affect the small intestine, the large intestine or both. It may be acute (sudden onset), chronic (over a long period of time) or come and go.
Acute diarrhea has a rapid onset and lasts less than 2 - 3 weeks.
Chronic diarrhea lasts longer than 2 - 3 weeks. Blood and or mucous may or may not be present in the feces.
Feces may also be yellowy, frothy in appearance, be mixed with blood (known as 'dysentry') and/or mucus.
Diarrhea is a relatively common occurrence in cats and has a number of causes, some of which include: