Transsexualization means that the self-perceived gender does not match the gender indicated at birth, and may or may not have undergone transsexual surgery. Usually refers to the essence of the body is male, but there may be two situations:

1. Through some auxiliary means, such as plastic surgery or transsexual surgery, the transformation or leap to women has been partially realized.

2. Being close to women only psychologically may be adjusted according to makeup, but there is no actual change in physiology. Sometimes it is nicknamed transvestite by netizens, which may be the case.

A typical (but somewhat simplistic) example is "a man's body, a daughter's heart". Many transgender women feel that they are women although their physiological gender is male; Transgender men are just the opposite.

Transsexualization refers to changing a person's original physiological gender through sex replacement surgery or other methods. People who have experienced transsexuality are called transsexuals or transsexuals. In medicine, people who want to change their biological sex, whether they are transgender or not, are called "transsexuals". Transitivity refers to the psychological negation of one's own gender, which, contrary to the negation of external genitalia, requires the change of physiological gender characteristics, so it is also called "gender transformation disease" and belongs to gender identity disorder.