Brain black face white may be related to ultraviolet radiation, skin inflammation and other factors. 1. Ultraviolet radiation, if you do not pay attention to personal skin care, often in the sun, or sunscreen is not enough, only do the face sunscreen, but not do the forehead sunscreen, may lead to the forehead part of the skin pigmentation, appearing in the brain is very black and white symptoms. 2. Skin inflammation, part of the patient forehead repeated episodes of eczema, neurodermatitis and other skin diseases, can appear local inflammation after pigmentation, may lead to the brain black and face white situation. For hyperpigmentation caused by related diseases, you can use hydroquinone cream and other medications under the guidance of a doctor, while strengthening sun protection.