If the patient has pain in the stomach, but goes to the hospital after all tests, the results show negative and no specific cause can be found. The first consideration is that it may be due to Crohn’s disease. Crohn’s disease refers to a chronic inflammatory disease in the intestine, the main clinical manifestation of the disease is stomach pain, sometimes accompanied by diarrhea, but the patient to the hospital for related tests, can not find the specific cause of the various tests are within the normal range. This disease has a great relationship with the patient’s diet and mood, if the patient is too nervous, may aggravate the symptoms of this phenomenon. It is also possible that there are parasites in the intestinal tract of the patient, the general examination is also negative, it is recommended that appropriate treatment with some worming drugs, such as appropriate to eat some mebendazole or albendazole for worming.