DR Pelvic Orthopantomogram, which is an orthopantomogram of the pelvis, can visualize sacroiliac joint lesions and in some cases, the cause of sacroiliac joint pain, such as congenital pelvic developmental anomalies. Orthopantomograms of the pelvis can visualize sacroiliac joint lesions, and if pelvic developmental anomalies such as congenital acetabular dysplasia, flattened hips, and slipped capital femoral epiphysis are observed at the same time, it can be initially confirmed that sacroiliac joint pain is related to pelvic developmental anomalies. If the pelvis is structurally normal, the cause of sacroiliac joint pain cannot be visualized and other avenues need to be pursued. For example, if the cause of sacroiliac joint pain is caused by long-term incorrect sitting posture or late pregnancy, it cannot be confirmed by radiographs. Therefore, if you have sacroiliac joint pain, it is recommended that you go to a regular hospital and complete the tests and examinations under the guidance of the doctor, so as to avoid any delay in treatment.