When a dog has diarrhea, the dog’s temperature should be checked to see if the temperature rises. If the dog has not been vaccinated, parvovirus infection must be considered. If the dog has not been dewormed recently, parasitic infection needs to be suspected. resulting in diarrhea. At the same time, you should carefully recall whether there is the possibility of swallowing foreign bodies, and then rule out parvovirus infection. Under normal circumstances, diarrhea requires oral probiotics and antibiotics, and dogs with parasitic infections also need deworming.