The iliac bone bulge is not necessarily a tumor, it may be a normal phenomenon, or it may be a pathological phenomenon. If bilateral iliac bone is symmetrically raised without obvious symptoms, it is likely to be a normal phenomenon, and the normal physiological anatomy of iliac bone is raised state, and both sides are symmetrical. If unilateral iliac bone is raised and accompanied by pain symptoms, it is likely to be a pathological phenomenon, which may be caused by local inflammation and infection with local swelling and pain accompanied by iliac bone raised, or it may be a tumor, when the tumor is large in size, resulting in iliac bone raised and accompanied by pain. Therefore, iliac bone bulge is not necessarily a tumor, such as unilateral bulge with pain should be alert to the possibility of tumor, go to the hospital in a timely manner to seek medical treatment, to clarify the cause of the disease, and to carry out standardized treatment.