But in human cultures, sex categories get simplified into male, female, and sometimes intersex, in order to simplify social interactions, express what we know and feel, and maintain order.
So nature doesn’t decide where the category of “male” ends and the category of “intersex” begins, or where the category of “intersex” ends and the category of “female” begins. Humans (today, typically doctors) decide how small a penis has to be, or how unusual a combination of parts has to be, before it counts as intersex.
Some think you have to have “ambiguous genitalia” to count as intersex, even if your inside is mostly of one sex and your outside is mostly of another.
You're born with traits and characteristics of both sexes. For me specifically, being intersex means that I was born with Swyer Syndrome.
Which variations of sexual anatomy count as intersex?
In practice, different people have different answers to that question.
While most females commonly possess two X chromosomes, my sex chromosomes are XY.
Since I don't produce natural estrogen, I take daily hormones to maintain healthy bones, sexual health, and emotional health.