What is Onychomycosis characterized by?

Onychomycosis is a fungal infection of the nail that is characterized primarily by the thickening of the nail plate and discoloration. Over time, the infection can cause the nails to appear yellow or white and may also lead to a build-up of debris under the nail. These changes in texture and color are significant indicators of this condition and help in distinguishing it from other nail disorders.

The thickening occurs as the fungus interferes with the normal growth of the nail, leading to a more rigid structure and making it difficult for the nail to maintain its usual shape and appearance. Discoloration is a common symptom as the fungal infection begins to affect the keratin in the nail, altering its usual coloration. This makes the choice referring to the nail becoming thick and discoloring the correct identification of onychomycosis.