The thesis on Developmental Dysplasia of the Hip (DDH) provides an in-depth analysis of the multifactorial causes and the crucial role of early diagnosis using clinical and radiological methods, particularly ultrasound. Highlighting the specific approach in Hungary, the study evaluates the outcomes of various treatments at the Department of Orthopedics in Debrecen. The research, involving 39 hips, demonstrates that initial closed reductions yield the best outcomes, with 100% satisfactory results and no cases of avascular necrosis (AVN). Conversely, the need for osteotomies correlates with worse outcomes and a higher incidence of AVN. The study emphasizes the importance of tension-free reductions to minimize complications, aligning with existing literature. Overall, this work underscores the complexity of DDH treatment and the necessity for individualized approaches to optimize patient outcomes.