The white hair on both sides may be caused by physiological factors such as aging; it may also be caused by diseases such as vitiligo and albinism. 1. Physiological factors: the age of the body melanocyte activity decline, the body produces less pigment, so the black hair will be reduced, the number of white hair increased, which is a normal physiological phenomenon, no need for special treatment. 2. Vitiligo: If you are affected by parental genetic factors or suffer from hyperthyroidism, autoimmune polyglandular syndrome and other autoimmune disorders, it is easy to induce vitiligo, appearing on both sides of the white hair, epidermis with white spots and other symptoms. 3. albinism: the body melanin production abnormalities belong to the common cause of albinism, the patient may therefore appear on both sides of the white hair, the whole body skin is milky or pink and other symptoms. After excluding physiological factors, patients with white hair on both sides of the body are recommended to go to a regular hospital to get a clear cause of the disease and then treat the symptoms.