初产头位产程异常的临床诊断有5种:①潜伏期延长,指宫颈扩张曲线的潜伏期>16h;②活跃期停滞,指活跃期宫口停止扩张,或扩张<0.5cm/h,需连续观察2h方能确诊;③活跃期延长,指活跃期>8h;④第二产程延长,指宫口开全后>2h胎儿尚未娩出; There are five kinds of clinical diagnosis of abnormal labor in the first stage of birth: ① Latency is prolonged, which means the incubation period of cervical dilatation curve is> 16 hours; ② Active stage stagnation refers to cessation of dilatation or expansion of <0.5cm / h in active stage, 2h side can be diagnosed; ③ prolonged active period, refers to the active phase> 8h; ④ second stage of extension, refers to the cervix open> 2h fetus has not yet delivered;