Constant stomach pain and diarrhea are commonly caused by the following diseases: intestinal infections, intestinal tumors, irritable bowel syndrome and so on.
1. Intestinal infections: including bacterial infections, parasitic infections, etc., which will lead to intestinal inflammation, and then stomach pain and diarrhea will occur.
2. Intestinal tumors: including colon cancer, rectal cancer, small intestine cancer, etc. Due to the stimulating effect of tumors, it will lead to abnormal functions of intestinal secretion, peristalsis and absorption, which will lead to diarrhea, and tumors will lead to obstruction of defecation, which will cause abdominal pain.
3. Irritable bowel syndrome: after this disease, the peristalsis of intestines will be accelerated and even intestinal spasm will occur, which can cause diarrhea and abdominal pain.
It is recommended that patients go to the hospital for consultation, and can complete the relevant examinations, such as stool routine, colonoscopy, etc., which can usually clarify the cause.