Add Yahoo as a preferred source to see more of our stories on Google. Photo credit: Image Source - Getty Images It sounds weird but have a way of being less alarming than discolored fingernails (after ...
It was developed by manually correlating fingernail-bed color with hemoglobin levels, based on photos of 337 peoples' fingers – all of those people had undergone CBC testing, so their levels were ...
A black line in the nail may be simply a color variation, but it can also result from an injury. Other possible causes include the use of certain drugs and various health conditions, including HIV and ...