A raised bruise in the middle of the forehead is caused by a vein that is close to the skin and even protrudes from the skin surface. If this occurs suddenly, the jugular and superior vena cava should be examined for external compression or lesions of the vessel wall itself that may be causing obstruction of the venous return, resulting in the bulging veins in the middle of the forehead. If there is no external compression or the cause of the vessel wall itself, then the veins in the middle of the forehead are dilated and this condition can be left untreated. If it is caused by compression or vascular lesions, the patient needs to be treated according to the specific situation. In most cases, it is caused by external compression, which can be removed surgically.