引起唇腭裂的原因可分两类:环境因素与先天因素,均属多因性。单纯唇裂或伴有腭裂的唇裂的发生与单纯腭裂的发生原因不同。由于现代医疗技术的发展,使得不少患儿得以治愈与生存,从而显得本病发生率较以往为高,并有利于病因学的研究。作者首先分析了唇裂或带有腭裂的唇裂 Causes of cleft lip and palate can be divided into two categories: environmental factors and congenital factors are due to multiple. Pure cleft lip cleft palate or cleft lip associated with the occurrence of cleft palate causes. Due to the development of modern medical technology, many children have been cured and survived, which makes the incidence of this disease appear to be higher than ever before and is conducive to the study of etiology. The authors first analyzed cleft lip or cleft lip with cleft palate