Pregnancy and sexually transmitted diseases among adolescents is considered a major problem in our society. The purpose of this study is to review the past five years of professional literature on adolescent sexuality to determine the factors which influence this social phenomenon as well as effective interventions. The importance of the family and religion on sexual attitudes and behaviors, how sexual activity is related to other age-related behaviors and delinquency, the relationship between early coital behaviors and the risk of pregnancy and sexually transmitted diseases, and attitudes toward contraception and abstinence are discussed. Also addressed are the possible psychological effects of sexual activity on the development of the adolescent.