If your toenail has recently become thickened and discolored, you may be dealing with a fungal infection known as onychomycosis. You are not alone—this has been found to affect about 14% of people.

More often, though, they’re a cosmetic problem, as the toenail may become thick, discolored, or cracked. You can pick up a toenail fungus from ... as you notice early-stage symptoms.

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