pubic region vs pubes

pubic region and pubes both are nouns.

Word	Noun	Adjective	Verb	Adverb
pubic region	Yes	No	No	No
pubes	Yes	No	No	No

As nouns, pubic region and pubes are synonyms defined as:

pubic region and pubes: the lower part of the abdomen just above the external genital organs

Other synonyms of pubic region include loins.

pubic region (noun)	pubes (noun)
the lower part of the abdomen just above the external genital organs	the lower part of the abdomen just above the external genital organs