Tests to confirm the diagnosis of appendicitis: 1. Ultrasound of the abdomen can be chosen. For patients with obvious appendiceal swelling or fecaliths, ultrasonography can find foreign bodies in the appendiceal lumen and exudate around the appendiceal wall, usually purulent exudate, and can further identify the combination of urinary stones as a kind of exclusion and identification. 2, you can choose the abdominal fluoroscopy or abdominal plain film, and can find the dilatation of the intestinal tube, especially adjacent to the right lower abdominal region, and mainly in the small intestine. Dilatation of the small intestine is mainly considered to be caused by inflammation stimulation of the surrounding intestinal tubes. 3. Enhanced CT examination can also be chosen. Especially for patients with periappendiceal abscesses and elderly patients, CT scanning with contrast injection can reveal a significantly strengthened pus cavity, which also provides guidance for the next step of surgical treatment. The most effective treatment for appendicitis is surgery.