Pain management in children is a specialized service. Pain aetiology, assessment, and treatment vary at every age from pre-term foetuses at 23 weeks gestation to adolescence. In this chapter of European Pain Management advances in our understanding of pain assessment are reviewed, particularly in the use of developmentally relevant technology. Advances in acute pain, cancer pain, and in chronic pain are also reviewed, with a special focus on innovations in multidisciplinary treatments for chronic pain. There is a need to raise awareness and understanding of the needs of paediatric pain patients, and their family members. Education for all professionals who interact with pain patients is essential, as is the need to invest in specialized pain management services, and professionals, across Europe.