A small amount of punctate slightly high signal in the white matter of the brain is a scattered white dots in the white matter portion of the brain called demyelinating changes. It may be caused by ischemic cerebral white matter lesions or may be associated with autoimmune diseases. The white matter of the brain is where nerve fibers gather inside the brain. The nerve fibers resemble electrical wires and are covered with an insulating layer called myelin. As people age, atherosclerosis occurs in the arteries and the blood supply to the small blood vessels is poor, and ischemic changes occur, manifesting as abnormal signals in the white matter of the brain, but without any clinical discomfort, called non-specific changes. Or to further explain, as people age, gray hair and wrinkles appear, but it does not mean that they are sick, so it is called non-specific changes. Treatment can be given to improve microcirculation, activate blood circulation, oxygenation and nourishment of brain nerves. In addition, a small amount of punctate slightly high signal in the white matter of the brain may also be associated with autoimmune diseases such as multiple sclerosis. It is important to reduce the further destruction of cerebral white matter high signal and actively control the primary disease. In daily life, it is important to improve poor lifestyle, ensure sufficient and regular sleep, low-salt and low-fat diet, increase outdoor exercise, and avoid smoking and drinking alcohol, etc.