Bluish discoloration of the skin may signal a lack of oxygen in the blood. It could also indicate an abnormal form of hemoglobin (a protein in red blood cells) like it does with sickle cell anemia.

Cyanosis can occur when the body does not receive enough oxygenated blood. Although people’s lips can change color when exposed to cold, cyanosis often requires medical intervention. Cyanosis is the ...

Let’s be honest: The second we’re in charge of a kid’s well-being, a lot of us start developing an unhealthy relationship with WebMD. It’s totally normal (this parenting gig is pretty tough, after all ...