Cross-sectional study was conducted in 2007 on 300 students School Education Vocational Thu Duc dist., Ho Chi Minh city. Research subjects are women, most between the ages of 21-25 (40.3 percent), the percentage of qualified students from one level to the majority (58.3 percent) and almost excIusiverelatives (57.3 percent). History of sexual behavior, the majority (53.3 percent) study subjects always use condoms sex
100 percent of students having sex in the genitals. In addition, 1.7 percent of participants with a history of drug use. For students identified the vagina, which causes inflammation of the vagina caused by bacteria Gadnerella vaginalis majority (11.3 percent). The factors related to sexually transmitted diseases by study subjects were: age group, condom use with pathogens. The combination of risk factors that increase the chance of getting a sexually transmitted disease.