Pulmonary Edema | Symptoms, Causes and Treatment

8. Bluish lips


The impaired ability of the lungs to deliver sufficient oxygen to the blood due to the fluid present in the air sacs decreases the total amount of oxygen in the blood. This deoxygenated blood adds a bluish tinge to the lips, and sometimes to other sites such as the ears and the nail beds as well. In dark-skinned individuals, this manifestation may be less apparent.