In clinical practice, pain below the right lower abdomen is a relatively common site of abdominal pain, the possible causes of pain in this area are acute appendicitis, ureteral calculi, inflammation of the intestinal canal in the right lower abdomen, inflammation and lesions in the female uterine adnexa, as follows: 1. Acute appendicitis: the most common is acute appendicitis, the appendix is located in the right lower abdomen, when inflammation of the appendix occurs, pain in the right lower abdomen is more common clinical symptom of appendicitis. At this time, ultrasound or CT and blood tests are needed to determine the presence of appendicitis; 2. Ureteral stones: ureteral stones on the right side will also produce pain in the right lower abdomen, specifically characterized by more intense pain, which can be judged by urine routine as well as ultrasound; 3. Inflammation of the intestines in the right lower abdomen: if there is inflammation of the intestines in the right lower abdomen, this will also cause Pain; 4. Inflammation and lesions in the female uterine appendages: some female patients may experience pain again if there is inflammation or other lesions in the right ovarian area and uterine appendages. The more common is the content of the above aspects, if the cause of the patient’s pain can not be determined, as soon as possible to the hospital is the most scientific diagnosis.