近年来.头位难产已引起产科医生重视,其发病率约占头位分娩的17.5～21.6％,而且母婴并发症较高。胎儿体重是形成头位难产的一个重要因素,为了解胎儿体重与头位难产的确切关系,我们总结本院105例初产、单胎、头位、体重3500克以上胎儿的分娩情况作一临床分析。 In recent years, head dystocia has attracted the attention of obstetricians, the incidence of head delivery accounted for about 17.5 ~ 21.6%, and high maternal and child complications. Fetal weight is an important factor in the formation of head dystocia, in order to understand the exact relationship between fetal weight and head dystocia, we summarize our hospital 105 cases of primiparous, single-child, head position, weighing over 3,500 grams of fetus for clinical delivery as a clinical analysis.