Appendicitis CT and ultrasound said normal, not necessarily chronic appendicitis. Chronic appendicitis may cause local mucosal congestion and swelling, appendix volume becomes larger, CT and ultrasound imaging will have certain abnormal values, so the examination are normal, may not be chronic appendicitis. However, simple imaging can only be a reference, but should also be combined with the patient’s specific history, symptoms, physical examination and other ancillary tests, such as colonoscopy, routine blood, stool routine and other ancillary tests, combined with clinical symptoms, to determine whether the chronic appendicitis. If the body has uncomfortable symptoms, should promptly consult a doctor, follow the doctor’s instructions for the appropriate examination, clear the cause of the disease and active treatment.