11/25/2025
Thick toenails can develop for several reasons, and understanding the cause helps guide proper treatment. One of the most frequent reasons is a fungal infection, which can make the nail appear yellow, brittle, and difficult to trim. Repeated trauma from wearing tight shoes or stubbing the toe can also cause the nail to thicken as it tries to protec...
Read more: https://www.drparrett.com/blog/what-causes-toenails-to-become-thick