1 doctor weighed in:
Can flu-like symptoms suddenly cause your fingernails to turn blue?
1 doctor weighed in

Dr. Dan Fisher
Internal Medicine
In brief: Not likely
Nails or skin under nails? I can not think of a way to change color of your nails, but skin under nails typically reflects amount of oxygen being carried by red cells.
Bright red means full of oxygen and blue means depleted. Other disorders can also cause discoloration, but if new or associated with shortness of breath will need an explanation soon.

In brief: Not likely
Nails or skin under nails? I can not think of a way to change color of your nails, but skin under nails typically reflects amount of oxygen being carried by red cells.
Bright red means full of oxygen and blue means depleted. Other disorders can also cause discoloration, but if new or associated with shortness of breath will need an explanation soon.
Dr. Dan Fisher
Dr. Dan Fisher
Thank
Get help from a real doctor now
Dr. Christopher Crosby
Board Certified, Dermatology
12 years in practice
93K people helped
Continue
107,000 doctors available
Read more answers from doctors