1950—1978年在Fergusou Cliuic所作的息肉切除术患者中,发现幼年性息肉258例。本病不论年龄、性别均可发生,但72％的患者是20岁以下。最多的症状是出血(86％),病程数周至数月。息肉直径2Cm以下者占77％。发生在距离肛门缘20Cm以内者占90％,但是,约有10％用S状结肠镜未查出,而使用灌肠检查才被发现。 From 1950 to 1978, 258 cases of juvenile polyps were found in patients undergoing polypectomy in Fergusou Cliuic. The disease can occur regardless of age or gender, but 72% of patients are under the age of 20. The most common symptom was bleeding (86%), which lasted from weeks to months. Those with a polyp diameter of 2 cm or less accounted for 77%. Occurrence of 90% within 20Cm from the anal verge, but about 10% was not detected with sigmoidoscopy, but was detected using enema.