The Black Lung is a common name for all lung disease and it is mainly caused due to too much inhaling of the coal dust. The name suggests that the color of the lung in this case should be black instead of pink. Medically the condition is also known as coal workers’ pneumoconiosis and in its complicated form it is also known as progressive massive fibrosis or PMF. When you continuously inhale the coal dust the size of the lungs will increase and then there is a risk that you may suffer from emphysema and chronic bronchitis. The Black Lung if not taken care at the right time can turn extreme severe.