Schools are leaving discussions about puberty too late, say experts, as a survey of young people suggests that nearly a quarter (24%) of girls start having periods before the subject is covered in sex and relationships education classes at school. Almost 15% of young people said they were taught nothing at school about menstruation.

The pattern is repeated for boys with 38% experiencing wet dreams before having learnt about them. Over 50% of young people go through school without this aspect of puberty ever being mentioned.