What is white in the middle of nails?

If the nail is white in the middle, and there are slow growth and development, low immunity and other performance, to consider the possibility of a trace element deficiency, you can go to the hospital to do laboratory tests to /confirm/i. If the nail is white in the middle accompanied by skin itching, nail thickening or brittle, cloudy color without luster, may be caused by fungal infection onychomycosis. If the middle of the nail is white, but there are no other symptoms, don't worry too much, it is likely to be normal, continue to pay attention to it.