The Truth Behind the Biology of Sex

She said, “You may have heard before that gender is socially constructed, while sex is biological. But I’m here to tell you that what you’ve heard isn’t true. Sex is socially constructed too. So are you ready for the truth? Are you going to take the red pill or the blue pill?”
Three years later, I was diagnosed by my gynecologist with polycystic ovarian syndrome (PCOS), which means that my body produces hormones intermediate between “typical men” and “typical women.” What I learned from Kiki gave me context in which to understand what this meant about my body and who I am. But it’s still very hard for me to talk about. My hormones affect me in ways that are hard to see, so even most of my lovers don’t know. I can count the number of people in my personal life who know this about me on my two hands.
I picked the red pill. If you read on, you can take the red pill too.
The problem with calling sex “biological” is that biology is complicated. Hardly anything in biology fits into two neat categories like “male” and “female.” To give you an idea of how complicated sexual development really is, let’s go to the very beginning. How do sexual characteristics develop in a human embryo?