The X-ray method of bone and joint examination mainly uses X-rays to irradiate local tissues, which have different densities, such as bone, tendons, ligaments, etc., and have different degrees of absorption of the modalities. After collecting the remaining amount of radiation after irradiation, various tissues are imaged and diagnosed. This method includes various angles and positions of irradiation, such as the conventional diagnosis of joints, including frontal and lateral, and if necessary, axial and corresponding weight-bearing positions, oblique positions, etc. It is a relatively common painless, fast and convenient method of examination to perform the corresponding radiographic examination based on the initial determination of what tissue or what part of the body the disease is in. If an initial judgment can be produced after an X-ray examination, an MRI or CT examination is often required if a more precise examination and diagnosis is also desired.