However, these must be distinguished from simple "hydropic degeneration" seen in placentas of fetuses undergoing intrauterine demise.
须与单纯水样变别。图示子内胎盘正在死亡。
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Women, by contrast, may pick from a range which includes the Pill, vaginal rings, copper intrauterine devices, hormonal intrauterine devices, contraceptive sponges, cervical caps, spermicides, diaphragms, female condoms and tubal ligation.
相比之下,女性的选择包括避孕药、阴道避孕环、铜质节育器、含孕激素节育器、避孕海绵、子帽、杀精剂、避孕膜、女用安全套和输卵管结扎术。
Finally, a structural cause of secondary amenorrhea is intrauterine adhesions, or Asherman syndrome, which is when there is scar tissue inside the uterine cavity, typically in a female that has undergone uterine instrumentation in the past.
最后,继发性闭经的一种解剖结构性病因是腔粘连,即Asherman综合征,也就是腔存在疤痕组织,典型的原因是女性曾经有过子有创检查。