Diarrhea is a common gastrointestinal symptom. Patients with diarrhea should be prohibited from consuming lactose-containing foods, foods that are easily flatulent, and irritating foods. 1. Lactose-containing foods: Some patients will experience diarrhea after consuming lactose-containing foods due to lactose intolerance, so patients should prohibit the consumption of lactose-containing foods to avoid aggravating the condition. 2. Foods that are easily distended: when patients have diarrhea, gastrointestinal dysfunction, decreased digestive ability, at this time, patients should be prohibited from consuming foods that are easily distended, such as sweet potatoes, beans, radishes, etc., to avoid increasing gastric discomfort and aggravating diarrhea. 3. Stimulating food: patients with diarrhea should also prohibit the consumption of stimulating food, such as chili, mustard, etc., stimulating food will hurt the mucous membrane of the digestive tract, aggravating the symptoms of diarrhea. It is recommended that patients in the diet to nutritional balance, you can eat some fresh fruits or vegetables, you can also drink some stomachic millet porridge or white porridge and so on. In addition, once the patient has diarrhea aggravation, need to consult a doctor in time for treatment.