产钳术是在分娩第二期用产钳夹住儿头牵出胎儿,以达到加速分娩的目的。根据手术当时胎头先露部在盆腔位置高低,将产钳术分为低位,中位及高位三种。低位产钳术用于胎儿颅骨最低部已达到会阴部或稍高,双顶径已达到坐骨棘平面以下,低位产钳术在某种情况下可用眙儿吸引术代替,而中、高位产钳术常引起母儿的严重创伤,已被剖腹产术代替。故本文通过对173例低位钳的临床讨论、进一步发拄低位产钳的作用。 Obstetric forceps in the second phase of delivery with forceps holding the child pull the fetus in order to achieve the purpose of accelerating childbirth. According to the surgery at the time fetal head first exposed in the pelvic position level, the forceps surgery is divided into low, medium and high three. Low forceps for the lowest part of the fetal skull has reached the perineum or slightly higher, biparietal diameter has reached below the surface of the ischial spine, low forceps in some cases can be used instead of children suction surgery, and in the middle and high forceps often cause Serious trauma to maternal and child has been replaced by caesarean section. Therefore, this article through the clinical discussion of 173 cases of low forceps, and further issued the role of low forceps.