Most of the diseases of the small intestine will cause abdominal pain. There are many types of small intestinal diseases, such as intestinal inflammation, intestinal obstruction, intestinal polyps, intestinal tumors, intestinal torsion, intestinal adhesions, etc. Clinical symptoms are diverse and common, including abdominal pain, abdominal distension, diarrhea, and may lead to abdominal masses, and the longer course of the disease may cause bleeding, anemia, weight loss and other phenomena. A symptom of pain alone does not determine whether it is a small bowel disease. Symptoms caused by small bowel disease are also not able to diagnose which disease it is. If you are experiencing discomfort, you should go to a regular hospital as soon as possible, take the appropriate physical examination and auxiliary examination, and then give active treatment after clarifying the cause of the disease.