Nail whitening may be related to nail fungus, iron deficiency anemia and other diseases, congenital white nail disease, and can be improved by general treatment and medication. 1. Ringworm of the nails: If ringworm of the nails caused by white nails, patients should pay attention to personal hygiene, avoid sharing slippers, towels and other personal items with others. Severe cases can follow the doctor’s advice oral terbinafine, itraconazole and other antifungal drugs, to play the effect of antibacterial, bactericidal. 2. Iron deficiency anemia: white nails may also be caused by iron deficiency anemia, patients should pay attention to diet, eat more eggs, lean meat, animal offal and other foods, for the body to supplement nutrition. Can oral iron supplements, such as ferrous gluconate, ferrous sulfate and so on. 3. Congenital white nail disease: congenital white nail disease may also lead to white nails, this disease is mostly primary, can not be treated, patients in the daily to ensure adequate sleep, avoid staying up late. You can do proper exercise to improve your body resistance. There are many reasons for white nails, it is recommended to go to the regular hospital, under the guidance of the doctor for treatment.