It is a normal phenomenon that white fluffy hair grows after hair loss, which means that hair loss has not damaged the function of hair follicles, and the hair follicles can still grow new hair, and the white fluffy hair will take about half a year to return to normal hair. Hair loss can be categorized into scarring and non-scarring, the former is accompanied by the destruction of hair follicles, the loss of hair regeneration function, it is difficult to grow new hair; the latter follicle function is not damaged, will grow new hair, the new hair may initially appear to be white velvet, its growth rate is slow, the health of the relatively low, easy to fall off, generally in about half a year to return to the normal form. Hair loss after the growth of white vellus hair patients need to keep the scalp clean and clean, avoid scratching, friction of the local skin; to ensure adequate sleep, avoid staying up late, avoid exertion or stress; if necessary, under the guidance of a doctor to improve the local blood circulation of the drug to promote hair growth, avoid self-medication, so as not to lead to the occurrence of adverse reactions.