先天畸形又称先天异常,是遗传病最为常见的临床表现。先天畸形几乎存在于每个人身上,有的极为轻微不为人们重视,如痣、胎生青记、鼻中隔偏曲、耳前赘疣、胸毛等,有的则甚为严重,影响生命、生存、生活和生育。对畸形如何进行判断和处理,是临床工作者常感棘手 Congenital anomalies, also known as congenital anomalies, are the most common clinical manifestations of genetic diseases. Congenital malformations exist in almost everyone, and some are not very important for people to pay attention to, such as nevus, viviparous life, nasal septum deviation, ear warts, chest hair, etc., while others are very serious, affecting life, survival and life And childbirth. How to judge and deal with deformity is often very difficult for clinicians