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Thick toenails can be caused by a variety of reasons, including skin conditions, fungus or certain toe injuries. Nails also can take on a yellow color. There are a variety of ways to thin toenails.

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Soak your feet in a tub of warm water for 15 to 20 minutes . Then file the top layers of your toenails with an emery board or a nail buffer.

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Purchase a nail grinding tool. Use the tool according to product directions to thin your toenails. For severe cases, consult a physician and asked to be prescribed medication to treat your toenails.

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Prevent the fungal infection that causes thick toenails by wearing the proper footwear in shower rooms. Do not walk barefoot and keep your feet clean.