Barium enema examination of appendicitis, mainly for patients with chronic appendicitis, the test is still very important. In the period of acute appendicitis, physical examination, blood test, ultrasound are usually chosen enough to be able to determine the diagnosis of appendicitis. In the period of chronic appendicitis, because the patient is a chronic inflammatory process, the typical symptoms of appendicitis are not as typical as in the acute phase, and barium enema imaging is used to determine: 1, the location of the appendix, whether it is pelvic or anterior appendix, or other locations. 2, to determine the adherence of the appendix to the surrounding tissues. 3, to determine whether there is a residual segment of the appendix due to inflammation or localized appendiceal abscess during the acute phase. In some cases, the appendiceal lumen produces obstruction without visualization. In others, the appendix, as a result of the first time under the erosion of infection, has produced local structural changes, forming a short appendix. In all cases, the shape of the appendix can be visualized before surgery by barium enema contrast, which is typical of barium enema contrast in chronic appendicitis.