Stage 4 emphysema is the most severe stage, in which a person’s symptoms may significantly affect their quality of life. Treatment may include medications, oxygen therapy, or surgery. Share on ...

Emphysema is a lung disease that damages the air sacs, making it difficult to breathe, especially during physical activity. Smoking is the primary cause of emphysema, but exposure to irritants, ...

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