Diarrhea is a common problem in puppies, and can range from a single mild episode to a severe symptom of a serious underlying condition.
There are a number of causes of diarrhea in very young dogs including:
- Change in diet
- Ingestion of a foreign object
- Viral infection
It's important to keep a close eye on a puppy with diarrhea, as very young dogs can get much sicker much faster than an older animal.