阴道是一个弹性，肌肉运河与柔软，灵活的衬里，提供润滑和感觉。
阴道在性交期间接收阴茎并且还用作来自子宫的月经流的导管。
阴道松弛发生是因为年龄，分娩，体重减轻和获得。在阴道松弛，肌肉放松，有不良的语气，力量和控制。内部和外部直径增加，并且会阴的肌肉弱并且支撑不良。

The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation.
The vagina receives the penis during sexual intercourse and also serves as a conduit for menstrual flow from the uterus.
Vaginal relaxation occurs because of age, childbirth, weight loss and gain. In vaginal relaxation, the muscles are relaxed and have poor tone, strength, and control. The internal and external diameters increase, and the muscles of the perineum are weak and poorly supported.