The reasons why the stomach feels down are as follows: 1, caused by intestinal diseases, such as ulcerative colitis, proctitis and other diseases, there will be symptoms of lower abdominal cramps, and may be accompanied by abdominal pain and diarrhea; 2, perianal abscess, pelvic inflammatory disease and other bacterial infectious diseases; 3, women with lower abdominal cramps may also suffer from cervicitis, endometritis, tubitis, ovarian cysts and other gynecological diseases; 4, Women who experience menstrual cramps during menstruation may also experience lower abdominal cramps. First of all, pay attention to rest, avoid straining, develop good eating habits, avoid spicy and stimulating food, avoid drinking alcohol, and if accompanied by other symptoms, further examination at the hospital is needed to clarify the diagnosis and provide targeted treatment according to the cause.