前言决定分娩是否顺利的主要因素是产力、产道和胎儿,任何一个以上的因素异常而使分娩梗阻,即可形成难产。国内按不同因素造成难产讨论颇多,近几年来有凌氏等从头置综合三个因素进行难产的讨论。为了初步了解海南地区难产发生率、难产原因和难产对母婴的影响,减少今后难产的发生和 Preface The main factors that determine the smooth delivery of labor are labor, birth canal and fetus, any one or more of the factors that make the obstruction obstruction, you can form a dystocia. Due to different factors in the country caused a lot of discussion of dystocia, in recent years there are three factors such as Ling Shi from the first set to discuss the issue of dystocia. In order to initially understand the incidence of dystocia in Hainan Province, the causes of dystocia and the impact of dystocia on mothers and babies to reduce the incidence of future dystocia and