Hip dislocation in children usually belongs to congenital hip dislocation. You can make your own preliminary judgment, first of all, see whether the child’s hip line is symmetrical, if the child’s hip line is not symmetrical, then we should pay attention to the possibility of hip dislocation; then see whether the lower limbs are isomorphic; in addition, is it possible to basically stick to the bed when the bilateral hip flexion and abduction, if it can’t be attached to the bed, the range of motion is relatively small, then hip dislocation is more likely to be. The next step is to go to the hospital to see a doctor, who will make a preliminary judgment with the examination. X-rays of the pelvis can be perfected to help accurately determine whether there is a hip dislocation and the exact degree. The earlier a congenital hip dislocation is detected, the more effective the treatment will be. For less serious cases, we can consider manipulation and frog cast immobilization, but for serious cases, we still need to consider surgery.