Frequent diarrhea after meals is often considered to be related to acute gastroenteritis, irritable bowel syndrome and other diseases, usually through dietary adjustments and medication to regulate the way. 1. Acute gastroenteritis is often considered when diarrhea after meals is accompanied by abdominal pain and vomiting. Diet should avoid eating greasy food, eat small and frequent meals, and if necessary, follow the doctor’s advice to fast. Medications can be taken under the guidance of a doctor, antibiotics, such as levofloxacin; diarrhea symptoms can be used in severe cases, such as montelukast and other antidiarrheal drugs to control diarrhea symptoms, and rehydration therapy can be carried out if necessary. 2. Diarrhea after meals may also be related to irritable bowel syndrome. Diet should try to eat more easily digestible food; medication can be taken under the guidance of the doctor antispasmodic drugs, such as pivacurium bromide. When the above situation occurs, it is recommended to consult a doctor in time, under the guidance of a specialized physician to follow the doctor’s instructions.