What can cause a dog to have diarrhea?

Diarrhea is characterized by frequent loose or liquid bowel movements. It can be caused by something as simple as a change in diet or a more serious illness or infection. read more

Bring your dog to the vet if his diarrhea continues for more than a day, or if you observe lethargy, vomiting, fever, dark-colored or bloody stools, straining to defecate, decreased appetite or unexplained weight loss. read more

Conversely, motility can be increased as well, so that the intestine contracts too quickly and fluid which normally is absorbed is lost into the feces. Sometimes dog diarrhea can be from a combination of these causes. Intestinal infections can also cause the intestine to over secrete. They also tend to change the motility of the intestine. read more