Pain in the small abdomen is usually considered to be an inflammatory disease in the abdominal cavity, or it can be caused by spasm of the small intestine. There are more inflammatory diseases, appendicitis and tubal inflammation can cause pain in the small abdomen, with appendicitis being the most common. The main cause is inflammation of the appendix, which can be caused by bacterial infection, and obstruction of the appendix cavity, which can also cause inflammation. The early manifestations of appendicitis are pain around the belly button, which slowly moves to the right lower abdomen and is fixed there, usually requiring surgery. Removal of the appendix or laparoscopic removal of the appendix is possible. If the pain is caused by intestinal spasm, it is most often caused by a cold in the abdomen or a history of surgery on the abdomen, resulting in intestinal adhesions that cause a burst of pain in the small intestine, and needs to be examined in the hospital and treated with anti-infection and rehydration if necessary.