muscles of perineum

例句：

1. 1. The doctor advised the patient to exercise regularly to strengthen the muscles of the perineum.
   医生建议病人定期锻炼，以增强会阴肌肉。
2. 2. During childbirth, the muscles of the perineum are stretched and need to be properly supported.
   分娩期间，会阴肌肉被拉伸，需要适当支撑。
3. 3. The patient was referred for further examination after experiencing muscle spasms during sexual intercourse.
   患者在性交过程中出现肌肉痉挛后，被推荐进一步检查。