perineal fascia

例句：

1. 1.The surgeon performed a delicate operation on the patient's perineal fascia.
   外科医生对患者的会阴筋膜进行了一项精细的操作。
2. 2. During childbirth, the perineal fascia must be carefully prepared to prevent tearing.
   分娩时，必须小心准备会阴筋膜以防止撕裂。
3. 3.A hernia can occur when the perineal fascia is weakened or stretched too far.
   疝气发生在会阴筋膜弱化或拉伸过度时。