A pulmonologist is specialists who diagnose and treat conditions that affect the respiratory system in men, women and also in children. They are also known as a respiratory physician. Pulmonologists treat everything from asthma to tuberculosis, and they have expertise in several types of respiratory disorders like infectious, structural, inflammatory, neoplastic, autoimmune. Pulmonologists can use and interpret exams and tests to help determine a lung-related diagnosis. They begin the diagnostic process with a general review focusing on hereditary diseases affecting lungs, exposure to toxins, exposure to infectious agents, an autoimmune diathesis.