The hair color of our hair is determined by melanin, just like the skin tone. If the amount of granular melanin contained within the hair hair mass is higher, the darker the hair will be. With white hair it is best not to pluck it, because after plucking the hair is easy to trigger folliculitis, and if too much plucking of white hair may damage the hair follicles attached to the hair, the hair follicles may be damaged, or even lead to atrophy, forming malnutrition, and later to grow black hair, then it is very difficult, and even cause hair loss situation. The best way to find the cause of the gray hair is to go to the hospital and get the right treatment under the guidance of the doctor.