Transgender people don't have to undergo medical gender reassignment treatment, and they are not necessarily interested in this step. Some transgender people do not advocate surgical change, while others are eager to change their physical gender through surgery, which is what we often call transgender people.
When we talk about two basic transgender people, we usually use the following names: transgender man (FtM) and transgender woman (MtF). In the past, people thought that there were more MTFs than FtM, but in fact, the ratio between them was close to 1: 1. Transsexuals include many kinds of people, such as transsexuals, transvestites and homosexuals. Usually does not include transvestites, because transvestites refer to those who simply like to wear clothes of the opposite sex, regardless of their gender identity. Transvestites and homosexuals, as well as transsexuals before transsexuality, do not agree with their own physiological gender and think that they should be of the opposite sex, which leads them to wear clothes and dress up of the opposite sex. But there is a problem of distinguishing transvestites from transsexuals. It is difficult for people to judge whether a person who likes to wear clothes of the opposite sex is a transvestite or a transsexual.
Whether bisexual people should be classified as transgender is controversial. Not all hermaphrodites are anxious about their assigned gender, and not all hermaphrodites have gender identity problems. However, hermaphrodites with these problems are often classified as transgender.