Pulmonology is a branch of medicine that focuses on the diagnosis and treatment of diseases and disorders affecting the respiratory system. This includes conditions such as asthma, chronic obstructive pulmonary disease (COPD), pneumonia, lung cancer, and more. Pulmonologists are specially trained to diagnose and treat conditions related to the lungs and respiratory system, using a variety of tools and techniques including imaging studies, pulmonary function tests, and bronchoscopy. They work closely with other medical specialists to provide comprehensive care for patients with respiratory issues.