I don't think the list needs two separate entries for men and women (that is, you don't need male and FTM or female and MTF).
"Male/Female/Undisclosed/It's complicated" is actually insufficient for me. My gender is not complicated, nor is it male or female, and I don't have any problems with disclosing it. But, there have been other threads on this topic, which I believe have been moved to the LGBT forum.
fraac wrote:
Bigender/Genderfluid (these are not the same but are similar enough that it shouldn't upset too many people)
Genderqueer
Intersex
What do these mean?
These are oversimplified
Bigender means having two genders, like someone who sees themselves as both a man and a woman. Steven Tyler of Aerosmith actually describes himself this way, if I recall correctly.
Genderfluid means having a shifting sense of gender - one may feel like a man sometimes, like a woman sometimes, like a combination sometimes, like neither sometimes, like something else sometimes. It varies.
Genderqueer usually means having a non-binary gender, or at least a gender modified in a non-binary way. Specifically, not being a man or a woman, but defined in some other way.
Intersex refers to people who are born with any of a number of conditions that affect their sexual development. Some have ambiguous genitalia and thus historically have been treated as a medical emergency to be "corrected" surgically by altering the infant's body to appear male or female. This at-birth assignment is not always correct, and can lead to trauma. Sometimes surgery was recommended because of the assumption that the child would not be able to adjust as a member of their sex assigned at birth.