The Guardian reports that analysis of data for BBC Radio 4’s File on 4 programme shows that the number of children aged nine to 12 admitted to hospital in the UK having hurt themselves intentionally rose from 221 in 2013-14 to 508 in 2019-20. A BBC Sounds recording looks at one teenager’s experience of hurting herself and discusses why younger children end up in hospital after injuring themselves, and the impact of the coronavirus pandemic on self-harm.