Fracture: A break in bone or cartilage. Although usually a result of trauma, a fracture can be the result of an acquired disease of bone, such as osteoporosis, or of abnormal formation of bone in a congenital disease of bone, such as osteogenesis imperfecta ('brittle bone disease'). Fractures are classified according to their character and location (for example, greenstick fracture of the radius).
Subscribe to MedicineNet's General Health Newsletter
Last Editorial Review: 5/13/2016