This document discusses different types and classifications of fractures. It begins by describing the key components of anatomic fracture description: type, comminution, location, and displacement. It then defines and provides examples of different fracture types, levels of comminution, anatomical locations, and degrees of displacement. The document also discusses several common fracture classification systems including AO classification and Salter-Harris classification of pediatric fractures. It concludes by defining types of fractures such as oblique, comminuted, spiral, compound, and greenstick fractures.