the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea
同义词：adenomyosis
endometriosis详细解释
en.do.me.tri.o.sis n.（名词）A condition, usually resulting in pain and dysmenorrhea, that is characterized by the abnormal occurrence of functional endometrial tissue outside the uterus.子宫内膜异位：指功能性子宫内膜组织出现反常的位于子宫外的情况，通常导致疼痛和痛经
