Adolescent sexual activity is increasing globally. Abstinence and a delay in the start of sexual intercourse may be the most effective methods in preventing the consequences of teenage sexual activity. However, these goals are seldom met. With the change in social norms, peer pressure and media influences; teenagers are engaging in premarital sex earlier.

Adolescent sexuality is a stage of human development in which adolescents experience and explore sexual feelings. Interest in sexuality intensifies during the onset of puberty , and sexuality is often a vital aspect of teenagers' lives. Sexual interest among adolescents, as among adults, can vary greatly, and is influenced by cultural norms and mores , sex education , as well as comprehensive sexuality education provided, sexual orientation , and social controls such as age-of-consent laws. Sexual activity in general is associated with various risks. Contraceptives specifically reduce the chance of pregnancy.

Sex problems do not only affect middle age and older people — teens and young adults have difficulties with sex too, a new study from Canada shows. Researchers asked boys and girls ages 16 to 21 about their sex lives, using online questionnaires that assess sexual functioning; for example, problems with erection , ejaculation or sexual desire. The study included only boys and girls who were sexually active, out of people in that age range who initially responded to the survey. Study participants reported extensive sexual experience and most were heterosexual and in committed relationships.