Intersex people are as common in the world as ginger people. Ginger people make up for two percent of the world's population, and so do intersex people.
When people try to justify that there's only two genders and only two sexes by that oh the doctor just chooses what they think is the predominant sex. It is both ignorance to the scientific knowledge we have today and it is a direct violation to that person.
Lately I've realised I'm pansexual. I'm glad to of realised what sexual identity I fit in. I never thought of it before really but I am glad to be able to identify myself as something. I never felt I could identify as bisexual or as heterosexual. What pansexual means, it just fits with my mind that if I'm comfortable with you, I don't give a damn what gender you are/identify as.