Elderly people eat meat dishes diarrhea, may be a one-time consumption of too many meat dishes and other physiological causes, may also be acute gastroenteritis and other pathological causes. 1. Physiological reasons: such as eating too much meat at one time or eating ice cream, spicy hot pot, strong tea, coffee and other stimulating foods, may stimulate the gastrointestinal mucosa, aggravate the burden on the gastrointestinal tract, causing diarrhea and other symptoms; in addition, the elderly gastrointestinal digestive and absorptive functions compared to young people have declined, eating meat may cause diarrhea, bloating and other symptoms of indigestion. 2. Pathological causes: (1) gastrointestinal dysfunction: it is a syndrome of gastrointestinal symptoms caused by the interaction of biological, psychological and social factors, which can be manifested as bloating, diarrhea, constipation, nausea, vomiting and other symptoms, and there are cases of diarrhea in the elderly after eating meat dishes. (2) Acute gastroenteritis: can be caused by bacteria, fungi, viruses, parasites and other factors acting on the gastrointestinal mucosa, causing gastrointestinal mucosal congestion, edema and other inflammatory reactions occur, diarrhea, abdominal pain, abdominal distension and other symptoms. Elderly people eat meat dishes diarrhea, there may be gastrointestinal tract carcinoid tumors and other malignant tumors caused by the suggestion of timely medical care in order to clarify the diagnosis, under the guidance of the doctor for targeted treatment.