The other links:
Learn the Signs and Treatment of Colitis in Dogs | VCA Animal Hospitals Canine Colitis - An Inflammation of the Colon in Dogs
From the second link:
Colitis is an inflammation or irritation of the colon or large intestine and, you guessed it: it commonly causes diarrhea in our furry friends.
Colitis can be acute (meaning it comes on suddenly) or chronic (lasting several weeks or longer, or recurring). There are several potential causes of colitis.
They include:
Intestinal parasites such as roundworms, whipworms, hookworms, and Giardia
A secondary reaction to antibiotics and many other medications
Stress
Pancreatitis
Dietary intolerance or allergy
Dietary indiscretion, such as eating grass, garbarge, or people food
Bacterial infection
Viral infection
Foreign body
Inflammatory and irritable bowel disease (IBD)
Bowel cancer in older dogs
- See more at: Canine Colitis - An Inflammation of the Colon in Dogs