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Most fashionable ladies don't give a lot of thought to their fingernails other than choosing just the right shade of polish. After all, nails are just kind of there, right? You forget about them -- until they start growing crooked. Crooked, curled or ridged fingernails are definitely not fashionable, and they usually signify a health problem. The key to keeping your fingernails from growing crooked is to think about them more often than just during a manicure.
Keep your fingernails on the shorter side to prevent conditions such as onycholysis, a separation of the nail from the nail bed. Your nails can appear to grow crooked as they lift away from the nail bed; you are more likely to suffer from this deformity when you keep your nails long. Clip and file your fingernails to just past the tips of your fingers to stay healthy and safe.
Wear protective gloves when engaged in yard work or other activities in which you could injury your hands. Crushing the nail bed on your fingers not only hurts, but can cause your nails to come in crooked, too. Not a pretty picture, is it?
Restrain yourself from picking at your cuticles or biting your nails. You might not think of what you're doing as an injury, but your nail bed doesn't know the difference between your not-so-wonderful habits and an accidental blunt trauma. Your body senses an injury and might respond in kind with nails that are ridged, crooked or pitted.
Get your iron to prevent crooked nails. Koilonychia is a nail disorder that makes your fingernails appear curved, and is associated with iron-deficient anemia. Make sure you eat enough iron-rich beef, chicken or shrimp. If you're not a meat-eater, kidney beans, prunes, raisins and tofu also provide iron.