Gray nail belongs to a fungal infection of the toe, the infection rate is very high, especially belongs to the hot weather area, very common in the youth population, the elderly are also prone to gray nail, as a fungal infection, the disease should pay attention to the following aspects: 1, in the dermatology department on the application of antifungal drugs to deal with, keep wearing shoes and local relatively loose, dry; 2, there is a class of lesions need surgical treatment, stubborn and Repeatedly cause nail deformation of fungal infections, the use of drugs usually does not work well, in this case can do surgery. The purpose of surgical treatment is to remove the diseased nail to facilitate the growth of new nails, while the nail removal process and then apply antifungal drugs, can better eliminate the fungal infection on the nail, so that the growth of the nail shape growth better.