injury of birth canal

例句：

1. 1.The mother experienced severe pain during childbirth, which led to a serious injury of the birth canal.
   这位母亲在分娩过程中经历了剧烈的疼痛，导致产道严重受伤。
2. 2. The doctor advised her to undergo surgery to repair the injury of the birth canal.
   医生建议她接受手术来修复产道损伤。
3. 3. This injury is considered a significant risk factor for future pregnancies, as it can lead to seriousdamage to the birth canal.
   这种损伤被认为是未来怀孕的一个重大风险因素，因为它可能导致产道严重受损。