直肠癌根治术是提高直肠癌疗效最重要手段。骶前出血是直肠癌根治术并发症之一。多年来，外科医生一直在研究防治骶前出血的方法。我院1985～1995年行直肠癌根治术137例，发生骶前静脉丛出血3例。首例未采用肌瓣介导电烙法，导致出血量大，分期完成手术；余2例3次采用该法，效 Rectal cancer radical surgery is the most important means to improve the efficacy of rectal cancer. Presacral hemorrhage is one of the complications of radical resection of rectal cancer. For many years, surgeons have been investigating methods of preventing prebleachal bleeding. In our hospital from 1985 to 1995, 137 patients underwent radical resection of rectal cancer and 3 cases of hemorrhage before anterior venous plexus occurred. In the first case, the muscle flap was not used for the electrocoagulation method, resulting in a large amount of blood loss, and the surgery was completed in stages; the remaining 2 cases took this method 3 times.