Diverticula of the descending colon is a benign intestinal condition that requires surgery if there is recurrent diverticulitis or diverticular bleeding. Colonic diverticula usually include true diverticula and pseudodiverticula, and clinically true diverticula are more common, most of which do not cause significant symptoms. When the diverticulum is enlarged, diverticulitis may occur due to the accumulation of feces and stool, which may manifest as abdominal pain, abdominal distension, and even abdominal masses in severe cases, or the rupture of blood vessels in the diverticulum and subsequent bleeding from the diverticulum, so it manifests as bloody stool. So the descending colon diverticulum need to perform colonoscopy or barium enema examination, in order to clearly diagnose, if combined with recurrent diverticulitis or diverticular bleeding, need surgery to obtain a cure.