PWHN (People Who Have Neither), or IWHV (Individuals Who Have Neither), is a term for anyone who has neither a penis nor vagina, regardless of gender.
Other terms used for this concept include PHN (People Having Neither) or, formerly, PON (People of Neither) and ION (Individuals of Neither).
PWHN includes individuals who were born neither with a penis nor a vagina and individuals who have had sex reassignment surgery and have neither a penis nor a vagina. The term includes some intersex individuals, transneutral individuals who have have sex reassignment surgery (to a neutral sex), and some transsex/altersex men and women.
PWHN is a term designed to combat the ideology that having a penis is what makes one a man and having a vagina is what makes one a woman, and is made promote gender-neutral language and terms. The term also allows simplicity in describing genitalia in medical situations, such as sex education, where describing individuals as "intersex" may ignore the existence of altersex and trans individuals.
Related terms are PWHP and PWHV.
The term was coined by Cryptocrew on March 13, 2021 in order to help relieve dysphoria and discomfort in many genderqueer individuals. The alternate wordings of PWHN and PHN were created by Wiki user foreigntoolmaker on September 30th since some people were uncomfortable with PON. Weniviere, the coiner of the term, did not realize that the original wording "people/individuals of neither" sounded uncomfortable, due to English not being her first language, and has since acknowledged this grammatical mistake and embraces "PWHN/IWHN" as the main term.