Bronchitis

Bronchitis is due to the inflammation of bronchi. The characteristics are hypertrophy and hyperplasia of mucus gland. The symptoms are regular coughing , thick greenish yellow sputum , excessive secretion of mucus etc. the bronchitis is caused by cigar smoke, and air pollutants. As a prevention avoid the exposure to cigar smoke , chemicals and pollutants. Bronchodilator drugs are also used .

Emphysema

Emphysema is an inflation of the bronchiole . the characteristic symbol is the alveolar sac loss its elastic property . the result of this is that the alveolar sac remains filled with air after the expiration . the lung size increases .this is caused by cigar smoking . the brochodilators, antibiotics can be used for treatment.

Lung diseases related with occupation

When a person subjected to potentially harmful substances such as gas , fumes, dusts results in occupational lung diseases.  The common occupational lung diseases are silicosis and asbestosis.  The characteristic of this disease is fibrosis of upper part of lung ,causing inflammation.  An a prevention use mask at work place. Minimizing the exposure of harmful dust at work place.etc.