Both sides of the stomach are mainly intestinal tubes and urinary system. According to the anatomical structure of the human body, the right side is mainly ascending colon as well as appendix, while the left side of the abdomen is mainly descending colon, while the retroperitoneal organs have bilateral urinary system, including ureter, which then flows into the bladder through the pelvis. Therefore, for pain on both sides of the abdomen, if it is located on the right side, first of all, we need to be alert to the possibility of acute appendicitis, or urinary stones on the right side, and further ultrasound examination of the appendix and urinary tract is needed to clarify the diagnosis and, if necessary, surgical treatment. The history of abdominal pain on the left side is mainly considered to be urinary stones, or intestinal inflammation, especially sigmoid colon, which usually requires urological ultrasound or colonoscopy, and even surgery if necessary.