Hair graying may be caused by physiological, disease or other reasons.
1. Physiological reasons: with the increase of age, the progressive loss of melaninase activity in melanocytes, or melanocytes itself aging and apoptosis, the synthesis of melanin decreases, the hair will gradually become gray, which is normal, do not have to worry too much.
2. Disease causes:
(1) Albinism: When suffering from albinism, there will be melanin synthesis disorder. Due to the lack of melanin, the hair cannot maintain its normal black color and will gradually turn white. If it is caused by albinism, so the hair will turn white, you need to go to the hospital in time to receive treatment.
(2) Vitiligo: it is an acquired pigment loss disease, mainly manifested as irregularly shaped white spots, part of the hair is white, no other discomfort.
(3) Malnutrition: Lack of nutrition may also cause hair to turn white. If it is caused by nutritional deficiencies, there will also be the manifestation of emaciation, which requires timely nutritional supplementation in order to improve.
If it is not due to physiological reasons and lead to gray hair, then you need to pay attention to, go to the hospital in time.