You may also stretch your external sphincter muscles.

你也有可能会撑大你的外括约肌。

Stress incontinence treatments typically focus on strengthening the external sphincter muscle by doing things like Kegel exercises.

压力性尿失禁的治疗侧重增强外括约肌的收缩力，例如通过做Kegel运动。

Alright, as a quick recap, urinary incontinence occurs when urine involuntarily leaves the bladder —through the internal and external sphincter muscles.

得！快速回顾一下：尿失禁是指尿液不自主地通过内外括约肌离开膀胱。

The second door is the external sphincter muscle, and it's made of skeletal muscle and is under voluntary control, meaning that it opens and closes when a person wants it to.

第2道阀门是外括约肌，由骨骼肌组成，受意识支配，可以按照人们的意愿开合。