The white hair above the ear is considered to be caused by physiological factors such as ageing, but may also be related to disease factors such as albinism, vitiligo, malnutrition and other factors.
1. physiological factors: under normal circumstances, with age, the human body function gradually decline, tyrosinase activity is reduced, melanin synthesis is reduced, the phenomenon of hair white.
2. Disease factors:
(1) albinism: this disease is mainly caused by gene mutation, and pigment synthesis related gene mutation, resulting in melanin production disorder, causing hair hypopigmentation, white hair phenomenon.
(2) vitiligo: the cause of this disease is not clear, may be related to autoimmunity, oxidative stress, melanocyte self-destruction, genetic factors and other factors, can lead to the symptoms of hair whitening.
(3) malnutrition: if a long time picky eating, partiality, etc., resulting in the body nutrition is not timely supplemented, the body lacks amino acids, trace elements, vitamins, will affect the synthesis of melanin, resulting in hair on the white hair.
It is recommended that patients according to their own situation, if suspected to be caused by the disease, timely to the regular hospital, clear diagnosis, follow the doctor’s instructions for treatment.