Apple water can not be used to treat diarrhea, diarrhea may be due to indigestion, irritable bowel syndrome, gastrointestinal inflammation, etc., it is recommended to consult a doctor in a timely manner, for the cause of treatment. 1. Dyspepsia: mostly related to dietary habits, but also related to gastrointestinal diseases, often manifested as bloating, belching, hiccups, the treatment can be selected from cisapride, mosapride, domperidone and other gastric power drugs. 2. Irritable bowel syndrome: mainly due to bacterial or intestinal autonomic dysfunction, treatment can choose antispasmodic drugs, antidiarrheal drugs and probiotics. 3. Inflammation of the gastrointestinal tract: patients mostly have a history of dietary impurity, but also can be associated with eating stimulating foods, alcohol and other factors, the treatment mainly includes anti-infective, rehydration, correction of electrolytes and acid-base imbalance. Apple water is just a kind of food and does not have the role of treating diarrhea. The above medications should be used under the guidance of a medical professional. Patients with diarrhea need to seek timely medical treatment under the guidance of a doctor, and do not listen to prescriptions, so as not to delay the condition.