and 75-case endometrium surface anesthesia groups(ESA). To UNBA ,inject 0.2% lidocaine 5ml at 4 and 8 point of uterine neck.

• 宫颈阻滞麻醉组(阻麻组)70例；于宫颈4、8点处注射0.；2%25利多卡因总量5ml;