Generally speaking, dogs may have stress reaction after vaccination, but generally they are listless, have poor appetite and are unwilling to exercise, but generally they will not cause diarrhea! It should still be caused by intestinal dysfunction. It's best to feed the dog a few days to recuperate. Mild diarrhea will not affect the effect of the vaccine, there will be no big problem! If the dog is in a bad mood, has a bad appetite and has a fever, it is best to take it to the hospital for examination. .