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脱肛是肛管和直肠脱出肛门的一种疾病,可发生在任何年龄,但小儿发病率较高,一般以1~3岁为多见。原因是小儿盆腔支持组织发育不全,不能对直肠承担充分地支持作用,容易引起直肠粘膜脱垂。常在排便等增大腹压时包块从肛门脱出,形圆,表面光滑,可见一环一环由内向外放射状纵沟及直肠环圈,呈淡红色,一般无血。轻者能自行回缩,重者需要用手给其托回。如果小儿经常发生脱肛,可导致局部肿疼,充血水肿或感染发炎。
Anal rectal prolapse is an anal and rectal prolapse of a disease that can occur at any age, but the higher the incidence of children, generally 1 to 3 years of age is more common. The reason is that pediatric pelvic support tissue hypoplasia, can not fully support the rectum, easily lead to rectal mucosal prolapse. Often when defecation and other abdominal pressure increased mass prolapse from the anus, round, smooth surface, showing a ring from the inside and outside the radial longitudinal groove and the rectum ring, pale red, generally without blood. Light can retract themselves, those who need heavy hands to give it back. If children often rectal prolapse, can cause local swelling and pain, congestion and edema or infection inflammation.