Bone islands are normal variants of the human skeleton that do not usually disappear over time and are often discovered during a physical examination or during radiographs for other diseases. Bone islands appear on X-rays as localized increases in bone density, round or oval in shape, less than 1 cm in diameter, with relatively clear borders. The bone island itself does not cause any discomfort or other serious conditions such as malignancy, but it needs to be distinguished from other malignant or neoplastic diseases and closely monitored for a long time. The bone island itself does not require special treatment and is not harmful to the human body, it is a normal variation of the human body, so do not worry too much about the existence of the bone island.