Emphysema happens gradually as tobacco smoke or other pollutants damage the tiny air sacs in your lungs called alveoli. Normally, some 300 million alveoli help bring oxygen into your body and get rid ...

Emphysema is a lung condition often caused by smoking, leading to damage of the air sacs, which can make it difficult to breathe. The stages of emphysema are determined by symptoms and breathing tests ...

Symptoms of stage 3 and 4 emphysema may significantly affect a person’s ability to perform daily activities, such as showering. People may experience frequent flare-ups, worsening shortness of breath, ...

Surgical emphysema is another term for subcutaneous emphysema. It occurs when air or gas enters the subcutaneous tissue, which is the deepest layer of the skin. People can develop surgical emphysema ...