With the help of ultrasound examination, both congenital changes such as hip dysplasia and hip dislocation in newborns and infants, as well as inflammatory changes, can be detected. The examination technique is presented in detail, taking into account the anatomy and normal development of the hip joint, especially in premature infants. The focus of the book is on the systematic capture of diagnostic findings through qualitative image analysis and observation of dynamic processes in the hip joint during the ultrasound examination. Well-illustrated and commented, it serves as both a textbook and an atlas.