Most people eat a moderate amount of bananas will not immediately diarrhea, if the banana allergy, irritable bowel syndrome, abdominal cold, chronic enteritis patients may eat a lot of bananas diarrhea. Banana is a relatively common fruit, rich in nutritional value, can provide the body with certain nutritional value, most people eat bananas will not immediately diarrhea. Most people will not have diarrhea immediately after eating bananas. If people with allergies are allergic to bananas, eating bananas may cause diarrhea. Patients with irritable bowel syndrome may have diarrhea if they eat a lot of bananas due to abnormal intestinal motility. People with a cold abdomen may also have diarrhea if they eat a lot of bananas. Patients with chronic enteritis may also experience diarrhea, abdominal pain, and bowel sounds if they eat a lot of bananas. If discomfort occurs, it is recommended to consult a doctor and follow medical advice.