子宫内膜异位症(下简称内异)病变部位多在盆腔间充质。内异也可使盆腔腹膜产生化学性环境改变。准确诊断极小的早期内异对不育者很重要。本文主要讨论无色素内异腹膜改变。不育或其他原因行腹腔镜检查发现腹膜病变,但不能归为典型内异者共77例,其中37例在其他部位也有色素性改变,40例仅有无色素腹膜病变。引起注意的病变通常有一定范围,直径约1～10mm。在腹腔镜下对无色素腹膜病137份进行活检。病理诊断为内异通常具有腺上皮结构伴内膜样分化,有的仅有子宫内膜样间质细胞,有增生表现或蜕膜样分化也可诊断为内异。在137份腹腔镜活检标本中73份显亦有可作为 Endometriosis (hereinafter referred to as different) more lesions in the pelvic mesenchyme. Internal difference can also make the pelvic peritoneal chemical changes in the environment. It is important to accurately diagnose minimal early abnormalities in infertility. This article focuses on non-pigmented endometrial changes. Infertility or other reasons laparoscopy found that peritoneal lesions, but can not be classified as a typical difference in a total of 77 cases, of which 37 cases also have pigmentary changes in other parts, 40 cases of only pigment-free peritoneal lesions. Caused by the lesions usually have a certain range, a diameter of about 1 ~ 10mm. 137 cases of non-pigmented peritonitis underwent laparoscopic biopsy. Pathological diagnosis of internal differences usually with glandular epithelial structure with endometrioid differentiation, and some only endometrial stromal cells, with hyperplasia or decidual degeneration can also be diagnosed as internal differences. In 137 laparoscopic biopsy specimens were 73 copies were also available