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, ...

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 ...

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.