Healthy nails are smooth, with no spots or discoloration. They don’t have pits or grooves, although they may have vertical ridges. Nails that are cracked, split, or brittle can sometimes be a sign of ...

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One common cause of cracked nails is insufficient moisture. Nails, like the skin, require proper hydration to stay healthy and flexible. If your nails are dry, they become more prone to splitting and ...