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White spots on your nails, called leukonychia, are common and rarely a sign of anything serious. The nail plate grows from a section under your skin called the matrix, and even minor trauma there, a stubbed toe, a slammed car door, an overly aggressive manicure, biting or picking at your nails, can show up weeks […] The post What your nails are, and are not, telling you about your health appeared first on Rolling Out .