Gender systems can affect what personal experience of one's own gender and how they fit in society?
Gender identity Gender identity is one's personal experience of one's own gender. Gender identity can correlate with assigned sex at birth, or can differ from it completely. All societies have a set of gender categories that can serve as the basis of the formation of a person's social identity in relation to other members of society. In most societies, there is a basic division between gender attributes assigned to males and females, a gender binary to which most people adhere and which includes expectations of masculinity and femininity in all aspects of sex and gender: biological sex, gender identity, and gender expression. In all societies, some individuals do not identify with some (or all) of the aspects of gender that are assigned to their biological sex; some of those individuals are transgender or genderqueer. Some societies have third gender categories.
Feminist sexology Feminist sexology is an offshoot of traditional studies of sexology that focuses on the intersectionality of sex and gender in relation to the sexual lives of women. Feminist sexology shares many principles with the overarching field of sexology; in particular, it does not try to prescribe a certain path or "normality" for women's sexuality, but only observe and note the different and varied ways in which women express their sexuality. It is a young field, but one that is growing rapidly.