Pulmonology is a branch of medicine focused on the respiratory system, dealing with the diagnosis, treatment, and prevention of conditions affecting the lungs and breathing. The field includes the study of the trachea, bronchi, lungs, pleura, and diaphragm. Pulmonologists, the physicians specializing in pulmonology, are experts in managing diseases like asthma, chronic obstructive pulmonary disease (COPD), pneumonia, lung cancer, and interstitial lung diseases, among others.