Method: According to the area of placenta implantation or placenta adjoin, MTX is injected into placenta through belly with the help of B ultrasonic or into muscle .

• 方法：根据胎盘植入或胎盘粘连面积的大小，在B超引导下经腹胎盘穿刺注射MTX或肌肉注射MTX，同时口服米非司酮及中药生化汤（加减）。