2- White nails
A clear discoloration can be an indication of anemia or liver disease. Small white spots, on the other hand, do not indicate any pathology or even mineral insufficiency. They are micro-malformations of the keratin.
3- Black nails
Apart from hematomas that appear following a shock or a pinch, all black spots should be monitored very closely: all those that do not evolve like a mole or those that form a band like a “bar code” and do not disappear when they grow.
It can indeed be a melanoma (tumor), which can be treated well, provided that it is treated as soon as possible.
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