But white spots on your nails are a bit less common because the reasons for white spots on nails, a condition known as leukonychia, are a bit more specific. Common causes of white spots on nailsThe presence of white spots on your nails can mean a number of things. Other skin conditions like alopecia areata, lichen planus, and atopic dermatitis can also cause white spots on the nails, Dr. Camp added. How to get rid of white spots on nailsOnce you’ve determined what’s causing the white spots on your nails, you can take steps to get rid of them. When to call your doctor for white spots on your nailsIf you’re worried, it’s always best to consult your physician.