Physiologic and pathologic causes should be considered for diarrhea and stomach rumbling after eating bitter melon. Physiological reasons are eating too much bitter melon or intolerance to bitter melon, etc. Pathological reasons are enteritis, irritable bowel syndrome, Crohn’s disease, intestinal masses and so on. 1. Physiological reasons: bitter melon contains a lot of dietary fiber, dietary fiber can promote gastrointestinal peristalsis. If you eat too much bitter melon or intolerance to bitter melon can appear diarrhea, intestinal sound and other symptoms, generally can be relieved on their own. 2. Pathological causes: such as eating bitter melon unclean triggered by enteritis, but also nausea, fever, vomiting and other symptoms; such as irritable bowel syndrome can also have abdominal pain, intestinal chirping and other symptoms, defecation can be alleviated; such as Crohn’s disease can also be diarrhea and constipation alternately, abdominal pain and other symptoms; such as intestinal mass can also have fatigue, blood in the stool and other symptoms. For the case of eating bitter melon diarrhea and stomach ringing, it is recommended to consult a doctor to analyze the specific causes.