If you are not sure why your puppy has diarrhea, you can first fast for a day and observe. Generally, the dog's diarrhea will be cured after one day. At the same time, you should also pay attention to whether the puppy's feces contains blood. It is also necessary to anti-diarrhoea, and take medicines containing montmorillonite powder or bismuth subcarbonate tablets to prevent the dog's body from dehydration.

Owners need to check the cause of dog diarrhea. Usually the causes of dog diarrhea are food problems, parasites, pancreatitis, viral infections, etc. After determining the cause, appropriate treatment measures can be taken to treat the cause.