Because diarrhea occurs in the past few days resulting in poor diet, poor sleep, poor rest, and mental tension, the body is more tired and fatigued. For severe diarrhea there is also the possibility of dehydration, causing electrolyte disorders, low potassium, low sodium, which will also aggravate the weakness. Therefore, early treatment is recommended. It is best to go to the hospital and cooperate with the doctor to improve the relevant tests, such as stool routine, rotavirus, blood routine, blood biochemistry and other related tests, in order to clarify the severity of diarrhea and the specific causes, and cooperate with the doctor to give medication. If electrolyte disorders occur, rehydration is needed to correct electrolyte disorders, and if it is a serious infection, infection control treatment is needed to facilitate early recovery from diarrhea.