The disease mainly depends on the symptom diagnosis, and through the colonoscopy, the stool test and so on to eliminate the organic disease. There is no need for surgical treatment, general treatment for different symptoms. Drugs to relieve abdominal pain and diarrhea can inhibit intestinal peristalsis. The drug can promote the improvement of bowel movement and relieve constipation. In addition to medication for symptoms, probiotics and antibiotics can be used to improve the intestinal environment. Doctors also use drugs to reduce the sensitivity of the visceral nerve and to cooperate with psychotherapy.