There are only two types of gametes, and two reproductive classes capable of producing them. Everyone — even rare intersex individuals — can only belong to one reproduction class or the other. There is no documented case of a true hermaphrodite capable of reproducing as both male and female.
> Everyone — even rare intersex individuals — can only belong to one reproduction class or the other.
In principle, this is not necessarily true in Ovotesticular DSD (formerly “True Hermaphroditism”), which is generally a symptom of tetragametic chimerism, though for both health and gender reasons it is apparently not uncommon for people who naturally have both functional ovarian and testicular tissue to have hormone therapy and/or surgery to align more with the sex traits stereotypical of a single preferred gender.
That taxonomy was developed approximately 140 years ago, before the development of modern genetics and endocrinology, is based on the existence of mere gonad tissue, is scientifically specious, and has fallen out of favor.
So-called “true hermaphrodites” do not have functional male and female reproductive systems.
