各种原因均可导致胚胎发育出现异常,造成胎儿畸形。胎儿畸形通常使用彩色多普勒超声检查进行排查,但是一些孕妇由于各种原因导致孕期的产检不够完善,也未及时的发现或者重视,往往会导致一些严重的不良后果。本文对1例双胎连体婴儿进行报告,以期为未来医学研究提供参考依据。 A variety of reasons can lead to abnormal embryonic development, resulting in fetal deformity. Fetal deformity is usually diagnosed by color Doppler sonography. However, some pregnant women do not have perfect pregnancy tests or timely detection or attention because of various reasons, which often result in some serious adverse consequences. This article reports a case of twin twins, with a view to provide a reference for future medical research.