Abdominal pain with diarrhea may be caused by acute gastroenteritis, inflammatory bowel disease, intestinal flora imbalance and other disease factors. 1. Acute gastroenteritis: eating unclean food, food allergy, alcoholism and other factors can cause acute gastroenteritis, resulting in diarrhea, abdominal pain symptoms, but also with nausea, vomiting and so on. 2. Inflammatory bowel disease: it is an idiopathic inflammatory disease of the intestines, which can cause abdominal pain and diarrhea. 3. Intestinal flora imbalance: Due to the disruption of the balance between intestinal microflora and the increase of harmful bacteria, abdominal pain and diarrhea can be manifested, accompanied by abdominal discomfort and other symptoms. Abdominal pain with diarrhea may also be associated with irritable bowel syndrome. It is recommended to go to the hospital when symptoms of abdominal pain with diarrhea occur, the professional doctor to determine the cause of the disease.