Background The UN Convention on the Rights of the Child, CRC, claims that children should be heard in decisions about themselves. Children also have the right to play. This need to be applied in healthcare environment. Swedish laws and guidelines for children's healthcare confirm this. What do children themselves propose as important support to participate? Aim The aim of this study was to describe children and young people's experience in healthcare environment. Method A literature-based study of nine qualitative academic articles was conducted. 556 children altogether were asked about their experience from healthcare environment. Results The result is presented by five themes: To be afraid and sad To feel comfort and safety To understand To be included in decisions To know the nurse Conclusion Children and young people in healthcare environment feel discomfort and insecurity. They need help with symptoms and fear. If the nurse is perceived as a "bad nurse", the child is exposed to feel helpless. A child need a certain amount of comfort, playing and contact with peers to be motivated to participate. When invited to ask questions and express their worries, they want to be involved. Children want to participate in decisions about themselves. The nurse has a key role to involve the child. Confidence is built through technical skills in achieving procedures, good communication and personal attributes, such as being helping, kind, friendly and humorous.