Something you are born with may be a mole, a birthmark, or it may be a secret that you can never tell others. Chen Yuan was forced to reveal this secret in the first half of his life, and lived inexorably in the second half of his life just to kill those who knew this secret.
Special note: intersex people, having children. But there is no H at all, and there is no description that is of a marginal or light-hearted nature.
The relevant knowledge about true intersex people comes from the documentary "Gender Mystery" and the Wikipedia entry for "intersex people".