Why do dogs get 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. Diarrhea may be sudden in onset and short in duration. It can also last for weeks to months or occur off and on. 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

Dog diarrhea has four general reasons for occurring: osmotic imbalances, over secretion, intestinal exudation or motility disorders. Osmotic imbalances occur when the concentration of food molecules in the intestine is too high. Water is drawn into the intestine by the excess molecules, causing diarrhea in dogs . read more

Antibiotics kill bacteria, and sometimes they kill the helpful bacteria in the gut as well as any infection. Your dog therefore might get diarrhea because antibiotics cause an imbalance in the bowel. If the dog isn't absorbing the goodness from the food because of diarrhea, this will lead to weight loss. read more