Intersex

Intersex people are people born with any variation in sex characteristics including chromosomes, gonads, sex hormones, or genitals that do not fit the typical definitions of male or female bodies.

An intersex person may have any gender identity. They may agree with their assigned gender; in this case, they would be described as either ipsogender or cisgender, although the usage of the term cisgender is controversial with regard to intersex people. They may think of themselves as transgender, genderqueer, nonbinary, etc. An intersex person who feels that their intersex status has influenced their gender identity may identify as intergender. Some intersex people think of their intersex status as belonging to the broader range of LGBTIQAP identities.

Not everyone who identifies as nonbinary is necessarily intersex, and instead may be dyadic (not intersex). Other common terms for "not intersex" are perisex and endosex.

Intersex was one of the 56 genders made available on Facebook in 2014.

Dyadism
Dyadism is a common kind of sexism, the belief that humans are strictly dyadic, having only two sexes. In action, dyadism is discrimination against intersex people. That discrimination can include erasure, harassment, medical malpractice, lack of marriage rights, religious intolerance, human rights violations, and hate crimes against intersex people. Dyadism is also the basis of other forms of sexism, including binarism, the belief that people have only two genders.

Because of dyadism, doctors think of intersex conditions as an irregularity. As a result, intersex people were given so-called "normalizing" or "corrective" surgeries, often at a very young age, and without their consent.