性同一性
Gender identity can lead to security issues among individuals that do not fit on a binary scale. In some cases, a person's gender identity is inconsistent with their biological sex characteristics (genitals and secondary sex characteristics), resulting in individuals dressing and/or behaving in a way which is perceived by others as outside cultural gender norms. These gender expressions may be described as gender variant, transgender, or genderqueer (or non-binary) (there is an emerging vocabulary for those who defy traditional gender identity), and people who have such expressions may experience gender dysphoria (traditionally called gender identity disorder or GID). Transgender individuals are often greatly affected by language and gender pronouns before, during, and after their transition.