Accidents happen -- who hasn't unintentionally caught a finger in a door or dropped something heavy on toe? Mild trauma to the nail bed can cause small, white spots (leukonychia) in the nail plate that are harmless -- they grow out as the nail grows and eventually you'll clip off the damaged part of the nail. A more severe injury to the nail bed can cause dark spots or streaks on or under the nail, nail detachment (onycholysis) and splinter hemorrhages
Nail injuries can also happen during a manicure or pedicure. Nail polish and remover are drying and cause brittleness. And if you're a chronic nail-biter, try to quit the habit -- it can lead to nail deformities, as well as infections.
Keep reading to learn how nutrients can affect your nails.