If the nails show pale phenomenon, may be due to the lack of substances triggered, such as lack of zinc or vitamin B6, at the same time, anemia may also cause this condition, you can dietary modification, eat more fruits and vegetables, you can take multivitamin tablets, and at the same time, to strengthen the physical exercise. If the nail that white is crescent-shaped, in the lower end of the nail, this is a normal phenomenon, indicating that the body is relatively healthy, because the changes in the human organs will be reacted to the nail, this situation do not need to worry too much, indicating that the body is healthy.