As you know, I do what I do because I had the the opportunity to raise an intersex child. Necessity is the mother of innovation and parenting my child motivated me to develop my expertise in neuro-immune-endocrinology. The spectrum of sex is more like the color spectrum. In terms of phenotype (physical characteristics), gender identification, and sexuality – it’s not black and white.
I just got a question from someone on my email list asking about intersex children. She believed that all intersex children would become male is not treated with hormones or surgery. My answer to her:
Intersex is a word used to describe a variety of conditions in which a person is born with a reproductive or sexual anatomy that doesn’t seem to fit the medical definitions of female or male. Genitalia differentiation actually favors a female seeming phenotype, as it requires androgens and active cell receptor sites for a fetus to masculinization.
It matters what hormones the child produces and if they have those hormonal receptor sites to then develop a male or female-like appearance. An intersex XY child born with complete androgen insensitivity will develop a female body type without hormones and surgery. Today these children are not treated until they decide what gender they prefer.