Symptoms of total dislocation of the hip joint in children are mainly four aspects:1, hips or buttocks can be seen bulging head of the femur; 2, children walking restrictions or crossed legs, hip joint activity is limited; 3, the affected limb abduction and external rotation difficulties, and abduction can be heard popping sound, the joints issued by the friction sound; 4, long-term dislocation of the walking process may lead to dislocation of the joint pain, and sometimes the pain is more pronounced; at this time, need to be Timely to the hospital, the doctor dealt with the history and physical examination, but also through the X-ray and CT and so on to further clarify the diagnosis. Hip dislocation is divided into several types, such as subluxation, total dislocation, anterior dislocation, posterior dislocation, so the treatment program is not the same, but all of them need timely treatment and correction.