Developmental dysplasia of the hip is the most common anomaly of the musculosceletal system and still not much is known about it. A great number of published materials in printed publications discuss the organisation of the prevention of DDH. This work will try to give answer to the question as in which case the prevention of DDH can be really effective. The solution lies in further development of the organisation of the prevention of this congenital anomaly. Within the organisational scheme of DDH the authors emphasize the importance of the smallest posible number of doctors to be involved in the preventive care of the hip in the same child. The patient treated for the congenital dislocation of the hip should be followed not only up to the full osteomaturity of the hip, but during all his life because of the continuous threat of the development of arthrosis.