Years of social-psychology studies show that humans default to organizing each other by gender, race and age and use stereotypes to create, define and perpetuate organizational norms. Implicit, unconscious biases are well understood and, while individual people themselves might not set out to consciously act in sexist and racist ways, systematized biases, left unexplored and addressed, yield sexist and racist results.
I wanna throw a big "hell yeah" to those openly defending their transgender or gender-fluid identities, increasing the activity in this discussion. Although it should never feel taboo to be different than the "norm" (I'm using that term ironically, let me be clear), I'm glad there are some kick-ass role models to guide the way to create a new norm; a norm that lets everyone be whatever the hell they want.
Sometimes, the effects of sexism and implicit gender bias are difficult to show. However, in the case of women's health care, there's very little ambiguity. Women should be aware of what these problems look like, so that they can identify doctors who similarly understand them and can fairly diagnose and treat them.