Objective <p>The terminology used to describe hip dysplasia has evolved over time. Historically referred to as congenital dislocation of the hip (CDH), the condition is now more commonly described as developmental dysplasia of the hip (DDH), reflecting a broader understanding of hip instability as a dynamic developmental process. This study aims to investigate the temporal evolution and bibliometric characteristics of hip dysplasia terminology in the PubMed database between 1975 and 2025.</p> Materials and Methods <p>Publications indexed in PubMed containing the terms “congenital hip dislocation,” “congenital dislocation of the hip,” “developmental dysplasia of the hip,” or “developmental hip dysplasia” in the title or abstract were retrieved. Bibliometric analysis was performed using the bibliometrix package in R (biblioshiny interface). Temporal trends were evaluated using linear regression, joinpoint regression, and compound annual growth rate analyses.</p> Results <p>A total of 5135 publications were included. Developmental terminology first appeared in 1992 and became more prevalent than congenital terminology by 1997. By 2025, 90.5% of publications used developmental terminology, whereas only 2.8% retained congenital terminology. Thematic analysis identified two main research domains: pediatric diagnostic research and adult reconstructive surgery related to long-term sequelae of hip dysplasia.</p> Conclusion <p>The scientific literature demonstrates a clear transition from congenital to developmental terminology in hip dysplasia research.</p>