Many young people, who took part in this review, are telling us that they are not yet receiving quality sexuality education in a timely manner. Less than a third of online youth survey respondents feel that their school taught them about sexuality ‘well’ or ‘somewhat well.’ Satisfaction with sexuality education was even lower among lesbian, gay, bisexual, transgender and intersex youth respondents, and respondents with disabilities. Sexuality education is often starting too late. For example, 44% of girls had not received information on menstruation before their first period. As a result, many young people seem to be turning to other sources such as peers and the Internet - sources that are not always reliable. Young people, including those from vulnerable populations, should be engaged in comprehensive sexuality education design, planning and evaluation for both in- and out-of-school programmes.