If there is a white spot on the leg, if it appears suddenly, smooth surface, no dander, no self-conscious symptoms, cloudy white, milky white or porcelain white, you need to be highly alert to whether it is vitiligo, then promptly go to regular hospital dermatology consultation, if necessary, you can perform skin CT, dermoscopy and Wood’s lamp examination, clear diagnosis. If it is vitiligo, you can use topical glucocorticoid or tacrolimus cream, and also 308 excimer laser treatment or narrow spectrum medium wave ultraviolet light therapy in the stable stage. If you’re looking for a new way to get the most out of your life, you’ll be able to get the most out of your life.