很多国家实行妇女产后立即绝育,Tumer 和Hooper 指出,在生理学改变很大的时候作任选外科手术(elective surgery),可导致比较高的手术合并症,特别是血栓—栓塞现象,而产后小切口绝育的并发症很少。参与的受试者:至少有一个活孩子并希望在产后立即绝育者,无合并症;三天内自然分娩,而且在医学上适合手术。肥胖、有盆腔病理情况、既往腹膜炎史、脐下或脐周围有瘢痕者不宜手术。术前用药和麻醉按照每个中心常规进行,手术是按改良 Tumer and Hooper pointed out that elective surgery, when physiological changes are very large, can lead to higher surgical complications, especially thrombus-embolism, in many countries, and small postpartum incisions There are few complications of sterilization. Participants: At least one child alive and want to have an immediate sterilization after birth without complications; natural childbirth within three days and medically appropriate surgery. Obesity, pelvic pathology, past history of peritonitis, under the umbilical or umbilical scar around those who should not surgery. Preoperative medication and anesthesia were performed routinely at each center, and surgery was modified