Bluish Skin Discoloration
Bluish skin discoloration can be a sign of a severe lung infection. Sweating, fatigue, and shortness of breath are also symptoms to monitor.
Bluish skin discoloration is caused by low oxygen levels in the blood and can be a sign of pneumonia or other lung infections. The low oxygen level causes blood vessels near the skin’s surface to dilate or expand, making them look bluish under the skin’s natural bluish tint (the result of hemoglobin). Other conditions that cause low oxygen levels include heart attack, stroke, anemia, and carbon monoxide poisoning.
