Pulmonology (or Pneumology and phthisiology) is a science dealing with the treatment and prevention of respiratory system diseases, particularly lungs.

The most frequent diseases are: chronic bronchitis; chronic obstructive bronchitis, bronchial asthma; pulmonary emphysema; pneumonias with all varieties; pleurisies /virus, tuberculosis, etc. /; pulmonary and extra pulmonary tuberculosis, sarcoidosis, non-malignant and malignant diseases of respiratory system.