分娩潜伏期是产程的重要组成部分,新产程对分娩潜伏期定义做了重大的改变。分娩潜伏期时限扩展目的是尽量减少产程中的干预,降低产时剖宫产率。入院时机与产时剖宫产率有重要相关性,选择入院时机非常重要。 Childbirth incubation period is an important part of labor process, the new birth process on the definition of childbirth has made a significant change. The purpose of prolongation of latency of childbirth is to minimize the intervention in labor and to reduce the rate of cesarean section during labor. Admission timing and cesarean section rate during delivery have an important correlation, the timing of admission is very important.