The shemale is a major feature of Thailand. In Thai, the polite address is "Miss Androgyny" and the common address is "Transgender". In recent years, the number of Thai boys who choose "no return" is increasing every year, including many children born in ordinary families. Under this trend, the first "third gender" appeared in a public middle school in northern Thailand, which was specially used by "men who want to become women". Soon, this move was followed by many primary and secondary schools in Thailand.

During the lunch break of junior high school and senior high school in a county of Xixianzhi County in northern Thailand, more than 10 students went in and out of three toilets arranged side by side outside the dormitory, and one of them was marked with men and women on the upper body together.