肉眼观察，子宫内膜移位症病变部位血液呈黑色，相应病灶表现为火药灼伤外观。图示：在直肠子宫陷窝部位子宫后浆膜下可见小病灶。此部位的子宫内膜移位可通过腹腔镜观察并用烧灼术清除。
子宫内膜移位症：发生部位（模式图） | 镜下 | 移位于结肠（镜下） | 移位于子宫后浆膜下(大体) | 移位于子宫后浆膜下（肉眼放大） | 卵巢切面示巧克力囊肿
Grossly, in areas of endometriosis the blood is darker and gives the small foci of endometriosis the gross appearance of "powder burns". Small foci are seen here just under the serosa of the posterior uterus in the pouch of Douglas(杜氏窝即直肠子宫陷窝). Such areas of endometriosis can be seen and obliterated by cauterization via laparoscopy.