Hair overnight white considerations related to stress, mental overstress and other factors, and malnutrition, albinism, vitiligo and other diseases lead to, but the latter factors of these diseases lead to white hair usually need a certain amount of time, may be the symptoms suddenly become obvious, cause patients to pay attention to, conscious hair overnight white. 1. physiological factors: some people in excessive stress, mental overstress, etc., there may be a short period of time hair white phenomenon, but the hair is not easy to turn white overnight. 2. Malnutrition: Malnutrition is related to insufficient intake of nutrients, consumption disorders and other factors. Patients mainly manifest weight loss, emaciation, edema, skin elasticity, slow reaction, mental depression, yellow hair, some patients can also be manifested in hair whitening. 3. albinism: albinism is mainly associated with abnormal melanin production in the body, can cause some patients with a short period of time hair white, but also easy to accompany freckles, eye color changes, photophobia, strabismus and other symptoms. 4. Vitiligo: the cause of vitiligo is not clear, may be related to autoimmune system diseases, genetic, neurochemicals. The typical symptom of patients is white skin, which can be manifested as hair whitening. It is recommended that a short period of time hair white people to consult a regular hospital examination, in order to clarify the cause of the disease and comply with the doctor’s prescription treatment. Pay attention to daily skin care, avoid foreign body friction and stimulation, and consume more nutritious food.