There are two possibilities for deformation in the toenail area: first, because of fungal infection caused by gray nails, when the most serious degree of gray nail development can form nail deformation, nail destruction and many other forms. You can choose to use oral antifungal drugs for treatment. Common antifungal drugs include terbinafine tablets and spironolactone. The second, the nail area of the thick nail disease also easy to trigger nail deformation, this thick nail disease may be caused by a lack of trace elements, may also be the impact of external stimuli formed after the nail deformity accompanied by nail hyperplasia, pigmentation, serious cases can even appear nail loss. After the appearance of thick nail disease, it is recommended to go to the local hospital to do a trace element test, found to be deficient in trace elements targeted supplementation can be. If there is no deficiency of variable elements, nail extraction treatment can be carried out, and the new nails that grow out later are basically the normal form of nails.