Irritable bowel syndrome will be accompanied by the symptom of abdominal pain, due to the different tolerance of pain, different patients will have different degrees of pain. The onset of irritable bowel syndrome may be related to abnormal gastrointestinal dynamics, intestinal flora imbalance, intestinal infections, psychological abnormalities, etc. Clinical manifestations include abdominal pain, diarrhea, constipation, and changes in stool characteristics. Patients may have different degrees of abdominal pain, and the site of pain can be limited to one place or can be manifested as the whole abdomen has pain, to the left lower abdomen, umbilical cord, the lower abdomen, abdominal pain can be relieved to a certain extent after defecation, defecation. Patients with abdominal pain or suspected irritable bowel syndrome are advised to go to the hospital and ask the doctor to make a judgment, rather than making a blind judgment on their own.