What would cause white spots to appear on fingernails?
In most cases, no. While there are many reasons for these white spots (called leukonychia), most of them are due to mild trauma — such as hitting or slamming your fingernail on or into something — and there’s usually little cause for worry. The good news is they’ll simply grow out with time. Because a normal fingernail takes about eight months to grow out completely, you may not notice the mark of an injury for several months after the fact. If you see white spots about halfway up the nail, you can assume that the insult took place approximately four months earlier. But if you can’ t remember slamming that finger keep in mind there are other causes for white spots. If you use nail enamels, nail hardeners, or artificial nails, it’s also possible that you’re having an allergic reaction. Such products can cause nail fragility and very fine splitting or layering of the nail plate, which may result in whitish spots. The white spots may also be something that you picked up at the gym or du
