For the early diagnosis and treatment of congenital dislocation of the hip (DDH) in newborns, the Department of Pediatric Surgery, Department of Obstetrics and Department of Ultrasound of our hospital have jointly carried out the ultrasound screening of DDH in newborns, which is conducive to the early detection and timely treatment, avoiding the late complications and improving the life treatment. However, the smooth implementation of the screening work, the need for the majority of medical workers as well as parents to vigorously cooperate, the advent of a new life, bringing immense joy to the family, in the happy at the same time, but also hope that the parents will be able to carefully observe the child’s physical characteristics, the emergence of one of the following conditions, please take the baby to find experienced pediatric orthopedic surgeon to consult: 1, newborn babies on one side of the lower limb activity is less, the force of pedal stroke Smaller than the other side; 2, thighs, hips and behind the knee joint skin folds obviously asymmetric; 3, thigh appearance shortened; 4, when changing diapers or bathing the baby, smelled the hip joint popping; 5, hip adduction is limited, and so on. Congenital hip dislocation (referred to as hip dislocation) folk commonly known as “first hip” is a relatively common congenital malformation, characterized by the femoral head out of the acetabulum after birth or shortly after birth. In addition to the femoral head and acetabulum, the lesion often involves the joint capsule and the ligaments and muscles around the hip joint. The incidence ranges from 0.19% to 8.2%, with an average of 3.9%. The outcome of congenital hip dislocation is highly dependent on age. The earlier it is detected and the more timely the treatment, the better the outcome tends to be. Generally speaking, children under 3 years of age are mainly treated with conservative treatment such as traction, manipulation, plaster and support; children over 3 years of age are mainly treated with surgery. If left untreated, it will lead to lifelong disability.