This map tool draws from the latest data to show prevalence of mental health difficulties across the UK, including rates of eating disorders and self-harm, hospital admissions and secondary care referrals, and wider factors such as loneliness, school absence and bullying. It reveals stark disparities in children’s mental health across the four nations of the UK and between local areas. The accompanying briefing Mapping the mental health of the UK’s young people pulls out striking details from the data, and pinpoints areas where children face higher risks of disadvantage linked to poor mental health – including those living in poverty, in care, or facing abuse and neglect.