Abnormal right iliac bone signal is the medical term for imaging, often represents abnormal imaging signals, indicating local pathology, considering that it may be inflammation, cysts, tuberculosis infection, tumors and so on. 1. Inflammation: right sacroiliac arthritis can be found in the pelvic X-ray of the iliac bone edges of the bone calcification, showing high density shadow. 2. Cysts: cysts on the iliac bone are generally found to have low local bone density on X-ray, and on magnetic resonance examination, the cysts are elongated, ovoid or irregularly shaped, with low signal on TlWI and high signal on T2WI. 3. Tuberculosis infection: iliac bone tuberculosis infection in the sacroiliac joint CT examination, can show the iliac bone destruction of the site, scope and degree, especially for the site of the abscess, size can be shown clearly, can be shown on the CT iliac bone edge osteophyte high signal shadow. 4. Tumor: iliac bone tumor is usually examined by CT, and most of them show osteolytic bone destruction and low signal soft tissue shadow on CT. Abnormal signals found in the right ilium, it is recommended to actively consult the doctor for targeted treatment under the guidance of the physician.