Fundal massage causes the smooth muscle in the wall uterine wall to contract and harden.

子宫底按摩能促进子宫壁的平滑肌收缩和变硬。

The most common cause - uterine atony - can usually be managed with fundal massage and medications to help the uterus contract.

最常见的病因是宫缩乏力，一般可通过宫底按摩和使用药物来促进子宫收缩。

Uterine atony can be treated by fundal massage, massaging the fundus – the upper section of the uterus which is typically near the umbilicus right after birth.

宫缩乏力可以通过宫底按摩进行治疗，也就是按摩子宫的底部，即子宫的上半部分；该部分将在分娩后下降到脐水平附近。