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人类的畸形综合症约有数千种,但大多数仍属罕见。先天畸形是胎儿死亡、婴儿患病和死亡的主要原因之一。1979年我国七个地区围产儿死因分析:畸形儿占死检第四位。国外报导:可造成致残丧命的畸形总发生率为2.4%左右。能活到5岁的只有2/3左右.一、畸形的原因先天畸形可由两方面的因素引起:一是环境因素;一是遗传因素。一般认为大多数的畸形是多因素相互作用的结果。环境因素指母亲妊娠期间所接触的环境和物品,如:放射线、农药、工业毒物、摄入的药物(环磷酰胺、氨甲喋呤、阿斯匹林,苄丙酮香豆素等),以及妊娠期的感染,其中最重要的是病毒感染,除风疹外,还有巨细胞性病毒等
There are thousands of human deformities, but most are still rare. Congenital malformations are one of the major causes of fetal death, infant illness and death. Analysis of the causes of perinatal death in seven areas in China in 1979: deformity accounted for the fourth death check. Foreign reports: The total incidence of deformities that can cause malaise is about 2.4%. Can live to 5 years old only about 2 / 3. First, the causes of deformity Congenital malformations can be caused by two factors: First, environmental factors; First, genetic factors. It is generally believed that most deformities are the result of multifactorial interactions. Environmental factors refer to the environment and objects exposed during the mother’s pregnancy, such as radiation, pesticides, industrial poisons, ingested drugs (cyclophosphamide, methotrexate, aspirin, warfarin, etc.), and gestational Infection, the most important of which is viral infection, in addition to rubella, there are cytomegalovirus and so on