There are many causes of eyebrow bone skin whitening, such as seborrheic dermatitis, hypopigmented spots, vitiligo and so on. 1. seborrheic dermatitis: may be related to genetic factors, environmental factors, Malassezia breeding, usually mental stress, immune system dysfunction, lack of vitamin B in the daily diet, hormone metabolism abnormality, etc., which leads to dermatitis symptoms, it is recommended that the use of some of the ointment to relieve, such as dehumidification and anti-itching ointment, tacrolimus ointment and so on, to play a role in alleviating. 2. Hypopigmented spots: due to the reduction or disappearance of pigment, usually belong to the birthmark, but also may be caused by infections, such as tinea versicolor or syphilis, it is recommended to treat according to the cause of the disease. 3. Vitiligo: due to autoimmune diseases, pernicious anemia, etc., if the mental trauma, overworked anxiety, etc., can cause vitiligo, it is recommended to eat more tyrosine and mineral-containing foods, such as pork, seafood, milk and beans, avoid spicy foods, strengthen exercise to improve immunity. If the symptoms are not relieved, it is recommended to go to the hospital for examination and treatment.