Girlfriend diarrhea may be caused by diet and other physiological factors, but also may be caused by acute gastroenteritis, irritable bowel syndrome, inflammatory bowel disease, gastrointestinal tumors and other diseases. 1. Physiological factors: If the patient has overeating, eating too fast and other bad eating habits, or eating a lot of cold and spicy food and other stimulating food, will cause intestinal peristalsis dysfunction, causing diarrhea. This is usually a normal physiological phenomenon, can be gradually relieved after improving lifestyle and dietary habits, generally without special treatment. 2. Pathological factors: mainly gastrointestinal diseases, such as acute gastroenteritis, irritable bowel syndrome, dyspepsia, inflammatory bowel disease, gastrointestinal tumors, etc., which will affect the patient’s gastrointestinal digestion, absorption and peristalsis, the patient will also be accompanied by abdominal pain and bloating, nausea and vomiting, loss of appetite and other symptoms. This is a pathological state, and if it cannot be relieved for a long time, timely treatment is needed. If the patient has long-term or recurrent symptoms of diarrhea, it is recommended to consult a doctor in a timely manner to identify the cause and carry out targeted treatment to avoid delaying the condition.