congenital abnormality vs congenital anomaly

congenital abnormality and congenital anomaly both are nouns.

Word	Noun	Adjective	Verb	Adverb
congenital abnormality	Yes	No	No	No
congenital anomaly	Yes	No	No	No

As nouns, congenital abnormality and congenital anomaly are synonyms defined as:

congenital abnormality and congenital anomaly: a defect that is present at birth

Other synonyms of congenital abnormality include birth defect, congenital defect, congenital disorder.

congenital abnormality (noun)	congenital anomaly (noun)
a defect that is present at birth	a defect that is present at birth