X-rays are images produced on film after X-rays have penetrated the body, allowing changes in the density of that part of the body to be observed. If a fracture is broken, the density of the fracture gap is very low and will show up on the x-ray. X-rays, on the other hand, are very poor at developing most soft tissues. The human body is mostly soft tissue, except for the bones. Therefore, if the X-ray is “fine” after a trauma, it does not mean that it is really “fine”, but at most it means that the bones are “fine” and maybe the soft tissues are “fine”. something is wrong”. These soft tissues include ligaments, muscles, tendons, meniscus, cartilage, etc., which cannot be detected by X-rays and need to be examined by CT or MRI if necessary. If the x-ray is fine after the trauma, but the injured area is painful or swollen, and after treatment, it still does not improve, then further examination is needed, and do not simply think that the x-ray “fine” is really “fine”.