Right abdominal pain can not be detected by ct, it is recommended to improve the three routine (blood, urine, stool), abdominal ultrasound, sometimes need to check the venous blood index, gastroenteroscopy, gynecological examination. Right abdominal pain can not be detected by ct may be localized without organic tissue mucosal lesions, such as: intestinal spasm, appendicitis, etc., women’s right adnexal inflammation, pelvic inflammatory disease and other causes of pain in the right lower abdomen. Intestinal spasm: generally present symptoms of abdominal pain, need to perform three routine and abdominal ultrasound or gastroenteroscopy to confirm the diagnosis. Appendicitis: right-sided abdominal pain, may be accompanied by pressure pain, rebound pain and other symptoms, need to perform the three major routine and abdominal ultrasound to confirm the diagnosis. Inflammation of the right adnexa of women: right-sided abdominal pain, accompanied by increased vaginal discharge and other symptoms, vaginal secretion examination and abdominal ultrasound are needed to confirm the diagnosis. Pelvic inflammatory disease: lower abdominal pain, abnormal vaginal discharge or bleeding, etc., need to perform routine blood tests, ultrasound and gynecological examination to confirm the diagnosis. Right abdominal pain can not be detected by ct, it is recommended to combine with the medical history, follow the doctor’s advice, improve the required auxiliary examinations, and make a clear diagnosis, so as to avoid delaying the condition.