People infected with HIV may develop blue nails in two ways. First, the infection itself seems to cause this distinct sign. Second, some antiretroviral medicine has also been associated with blue nails. Cyanosis Cyanosis is a low or lack of oxygen in your red blood cells that may result in ...
Blue gums may indicate that your pup lacks oxygen in its body tissues. This blue coloring of gum is called cyanosis. It can signify various conditions, such as congestive heart failure, shock, or even poisoning. Other causes of blue gum coloring may be anemia, hypovolemia (low blood volume)...