The elderly will always have diarrhea because of the decline in body function and poor gastrointestinal function, and need to clarify the cause of the disease, and then give symptomatic treatment. 1, pay attention to diet: need to pay attention to the diet, mainly light, eat less or do not eat fried food, because for the elderly greasy food is difficult to digest, easy to aggravate the gastrointestinal burden. If patients have organic lesions in the digestive tract, such as chronic gastritis, gastrointestinal mucosal lesions, gallbladder and pancreatic diseases, they need to go to the hospital in time to be diagnosed and treated by professional doctors for the original disease. It should be noted that when the specific cause of the disease is not clearly diagnosed, do not use anti-diarrheal drugs on your own.