Diarrhoea (runny poohs) with or without weight loss is common in Shar peis.
These problems can arise when a Shar Pei is sensitive to food. They can also be prone to IBD (Inflammatory Bowel Disease) where they are allergic to components of the food.
This can vary from a mild condition occuring every now and then to a severe condition causing weight loss.
The treatment varies depending upon the severity of the problem. It can be as simple as changing the food or as complicated as permanent medication. We have seen dogs literally double their weight with appropriate treatment for IBD.
IBD if left untreated will commonly develop into a type of cancer known as intestinal lymphoma.