Hip dysplasia is a common musculoskeletal condition that affects both humans and animals. It is characterized by the abnormal development of the hip joint that causes pain, discomfort, and mobility issues. The medical term "hip dysplasia" is often used interchangeably with other words such as "congenital hip dislocation," "hip subluxation," and "developmental hip dysplasia." These synonyms describe the same condition but may be used by healthcare professionals in different contexts. Other synonyms include "acetabular dysplasia," "hip instability," and "hip impingement syndrome." Proper diagnosis and treatment of hip dysplasia require an accurate understanding of its synonyms and related medical terminology.