结肠黑色素沉着病(ｍｅｌａｎｏｓｉｓｃｏｌｉ,ＭＣ)是以结肠粘膜色素沉着为特征的非炎症性良性可逆性疾病。国外文献报道较多,认为与服用泻药有关。国内报道较少,我们在结肠镜检查中也发现此病在临床并不多见,而且一部分患者并无服用泻药史。现我们诊治的11例报道如下。... Colitis melanosis (MC) is a non-inflammatory, benign and reversible disease characterized by colonic mucosal pigmentation. Abroad reported more literature that the use of laxatives. Less reported in the country, we also found in the colonoscopy and the disease is rare in clinical practice, and some patients did not take laxative history. Now we deal with the treatment of 11 cases are as follows. ...