Conclusion Learn unambitiously,sum up are fully,observe carefully,guide the puerpera,master the adaption of the cleliver of the operation,choose the right way so as to prevent the illness.

• 结论:虚心学习,认真总结,仔细观察,指导产妇正确用力,避免胎儿娩出过快,严格掌握手术助产的适应证,选择合适的分娩方式,会阴裂伤是可以预防的。