Children with health conditions have delivered boxes of letters to Downing Street asking for more support at schools.
Each of the children represented five charities, which are concerned that school staff lack sufficient training and are not being fully included in lessons.
Douglas Smallwood, chief executive of Diabetes UK, said: ‘Some schools do a fantastic job of ensuring all pupils enjoy a full school life, but it is appalling that some do not get the support they need at school to manage their health condition.
‘Some children with diabetes are excluded from school trips or denied the school of their choice, and others have to change their insulin regimen to fit around school timetables regardless of what’s best for their diabetes control.’
Sophia Loizia, 17, who is in remission from cancer of the lymphatic system, attended on behalf of the charity CLIC Sargent.
Cole Barnard, 6, who has type 1 diabetes, represented Diabetes UK and David Reynolds, 13, who has Duchenne Muscular Dystrophy represented Scope.
Daniel Nwosu, who has suffered strokes and a brain haemorrhage, represented Sickle Cell and Young Stroke Survivors and Rhiannon Godden, 16, who has depression, represented Young Minds.