Name of the Day. FIONNUALA. Previous. Means white shoulder from Irish fionn white, fair and guala shoulder. In Irish legend Fionnuala was one of the four children of Lir who were transformed into swans for a period of 900 years. more...
Causes of Blue nails (Blue toenails or fingernails). The list of medical condition causes of Blue nails (Blue toenails or fingernails) includes: 1  Agyria. 2  Mepacrine. 3  Lack of oxygen.
Second, cyanosis (blue color) in the nails can be a sign of a problem with the heart or lungs. Again, this would be very unlikely in the absence of other symptoms, such as shortness of breath or chest pain or palpitations. Finally, high red blood cell counts, called polycythemia, may cause this discoloration.