A collapsed lung
(pneumothorax) is a buildup of air in the space between the lung and the chest
wall (pleural space). As the amount of air in this space increases, the
pressure against the lung causes the lung to collapse. This prevents your lung
from expanding properly when you try to breathe in, causing shortness of breath
and chest pain.
A pneumothorax may become life-threatening if
the pressure in your chest prevents the lungs from getting enough oxygen into
Recommended Related to Lung Disease/Respiratory Problems
Coughing up blood (hemoptysis) can be a sign of a serious medical condition. Infections, cancer, and problems in blood vessels or in the lungs themselves can be responsible. Coughing up blood generally requires medical evaluation unless the hemoptysis is due to bronchitis.