In radial tuberosity subluxation, as with other joint dislocations, the sooner the better. As soon as you notice that your child’s arm is not quite right, whether it is a radial tuberosity subluxation or not, you need to see a doctor as soon as possible. For example, if it is a radial tuberosity subluxation, why is it better to reset it as soon as possible? If it’s been more than 12-24 hours, there are joint capsules in the dislocated joint, and these capsules or the ligaments around the capsules are closely related to the underdevelopment of the annular ligaments. In addition to the annular ligament, there is a joint capsule in the joint. The joint capsule gets stuck in the dislocated joint and, over time, becomes edematous. The edematous ligaments and joint capsule are edematous soft tissues that fill the joint cavity. With the joint cavity filled with something else, it is not particularly easy for the radial tuberosity to go back in. Another reason is that a radial tuberosity subluxation that is immediately repositioned is easy to reposition, there are clear signs of successful repositioning, and there is a popping sound after repositioning. If the radial tuberosity subluxation takes longer, more than 12-24 hours, and the doctor is asked to reset the radial tuberosity subluxation, the resetting sound is very weak or not at all, and the doctor can not accurately judge whether the radial tuberosity subluxation has been reset or not. The longer the time, the longer the child endures the pain, the more fearful he is when he goes to the doctor, and the less compliance and cooperation he has.