By the time adolescence is reached, children should know a great deal about sex so that they are better able to manage their sexual urges. Ignorance about sexual matters, often result in unwanted pregnancies or venereal infections among young ones. Generally, there are so many myths about boys and girls to masturbate during adolescent period. It is important not to make them feel guilty about this practice. In majority of cases, in both boys and girls, late or delayed adolescence requires no treatment. Eventually all children reach physical maturity without the need of any medical treatment. A hormonal treatment if there is faulty menstruation would be safe to wait until she is 16 or 17 years of age. Better consult a gynecologist.