Rectum and sigmoid colon were the most common sites of the polyps (48/60).The other polyps were spread throughout the descending colon (7/60), splenic flexure (2/60), and transverse colon (3/60).

• 在所发现的60个幼年性息肉中，有百分之八十发生在直阳或乙状结肠，7个发生在降结肠，2个在脾弯，3个在横结肠。