If the skin around the lips is blue or purple, the issue is often temporary and no cause for concern. But if the skin of the lips is blue, and this tinge extends to the mouth, face, or other areas, ...

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.

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 ...

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 ...

Drawing on Blue provides a glimpse into the genesis of the tinted paper as a new vehicle for expression in European art. Already a member? Sign in here. We rely on readers like you to fund our ...