why people change the their birth identity?
Transgender is a term used to describe people whose gender identity differs from the sex the doctor marked on their birth certificate. Gender identity is a person's internal, personal sense of being a man or a woman (or someone outside of that gender binary). For transgender people, the sex they were assigned at birth and their own internal gender identity do not match. People in the transgender community may describe themselves using one (or more) of a wide variety of terms, including (but not limited to) transgender, transsexual, and genderqueer.