Fractures in children are breaks in bone continuity caused by excessive force, often resulting from falls or trauma, and can lead to disruptions in bone growth. Common fracture types include forearm fractures, epiphyseal fractures, and greenstick fractures, with healing occurring more rapidly in young children. Nursing assessments for fractures should include monitoring vital signs, potential bleeding, and neurological status, alongside appropriate interventions like immobilization and pain management.