Most of the clinical symptoms of colonic diverticulum are not too obvious, a small number of patients can be complicated by diverticulitis, may have colonic obstruction, intestinal perforation, diverticular hemorrhage, etc., the condition is more serious. Diverticulum refers to a disease in which diverticulum exists in the colon due to various etiological factors. Most patients generally have no clinical symptoms, and a few patients may experience paroxysmal pain in the left lower abdomen, abdominal distension, loss of appetite, left abdominal pressure and other symptoms, which are not too serious. When colonic diverticulum complications, may cause colonic diverticulitis, serious symptoms of patients, can appear colonic obstruction, colonic bleeding, colonic perforation, etc., the condition is generally more serious, bleeding serious patients, may cause hemorrhagic shock, endangering the patient’s life. Patients with colonic diverticulum, should be treated as early as possible, such as anti-infection and symptomatic treatment, etc. For patients with serious condition, surgery can be considered.