congenital defect

He has a congenital heart defect.

他有先天性心脏缺陷。

It is suggested that lumbosacral agenesis, a severe congenital defect, might be one of the anomalies of diabetic embryopathy.

此病例显示腰荐椎发育不全可能是母亲糖尿病所导致胚胎病变一种，无论有无接受胰岛素治疗，此先天畸形仍可能形成。

This was true whether applied to a congenital defect, such as syndactyly, or an acquired defect, such as a burn contracture.

把它们应用于诸如并指先天缺或是烧伤疤痕挛缩类后天缺复，往往都没错。