A large U.S. health records study suggests that difficulty seeing blood in urine may put color-blind patients at higher risk.

People who are colorblind may be missing a life-saving warning sign of bladder cancer. Analysis of the electronic health ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Color blindness is known to be more common in males. That comes down to the genetics of the ...

Anyone with normal color vision agrees that blood is roughly the same color as strawberries, cardinals and the planet Mars. That is, they're all red. But could it be that what you call "red" is ...