The article presents an overview of the current data of the world scientific community on the deformities of the musculoskeletal system in ballet dancers. The purpose of the study was to analyze the modern literature and select materials characterizing the pathomorphological transformations of the bones and joints of the lower extremities. Detailed characteristics of structural changes in the bone, ligamentous and articular apparatus of the lower extremity are given, the mechanisms of occurrence of some injuries are given, and statistical data on the most frequent and common causes of traumatization of the limbs are considered, with the presentation of some types of injuries identified by magnetic resonance imaging, their ratio in frequency among experimental and control groups.