Many young people in low-and-middle income countries (LMICs) go through adolescence without ever receiving preventive or promotive health services. Those who do, often do so late due to multiple barriers, including lack of money for transport and payment of health services, needing permission from an adult or unwillingness to disclose health concerns to health workers, lack of health equipment and lack of trained staff. This is a missed opportunity for health services to identify and treat issues early, and for adolescents to develop positive health care seeking behaviours. WHO provides clear, evidence-based guidance for national public health systems to provide routine health check-ups for children and older persons. However, this is lacking especially for adolescents in LMICs and is not clear of the content, frequency, best delivery approach and its effectiveness. To address this, the Y-Check intervention aims to provide and evaluate  health-check-up services in adolescents.