Skin will have white spots may be caused by vitiligo, seborrheic dermatitis, white furfura, limited pigment loss disease and so on. 1. Vitiligo: The disease is usually associated with heredity, immune disorders, nerve cell self-destruction and other factors. When the disease attacks, it will lead to local skin white spots with clearer boundaries, or will appear porcelain white white spots, and its surrounding can be seen with pigmentation ring. 2. Seborrheic dermatitis: it occurs in children’s face, limbs and other parts of the body. For example, eating less green vegetables, skin infections and other reasons may lead to the occurrence of this disease, which leads to the appearance of local skin with fine scales, pale white spots. 3. White chaff rash: lack of trace elements may lead to the occurrence of white chaff rash. This will lead to white spots on the arms, face and other parts of the body, on which there are fine white flakes, and a mild roughness can be felt when touching the white spots with the hands. 4. Limited achromatopsia: This disease is related to the aging of the skin. People who suffer from restrictive achromatosis are prone to white spots on the back of the lower limbs. When the white spots are touched with the hand, there is a mild depression. When the skin appears to have white spots, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment under the guidance of the doctor.