My toenails are starting to curve downward and dig into the skin. Why does this happen with age?
Toenails don’t suddenly “go bad” out of spite; they slowly change as the body changes. With age, keratin production drops and the nail matrix weakens, so nails grow slower, thicker, and more brittle. Genetics can make them curve more dramatically, while years of tight shoes and repetitive pressure gradually force them downward into the skin….