Pulmonology

Pulmonology is the branch of internal medicine focused on the diagnosis, treatment and prevention of disorders that affect the respiratory system, including the lungs, windpipe, bronchi, pleura, mediastinum and chest wall. The specialist is a pulmonologist, sometimes called a chest physician. The respiratory system takes in oxygen and clears carbon dioxide with every breath, so when it is disturbed the effects reach the whole body, from breathlessness and cough to poor sleep and low energy. The field spans the very common, such as asthma and chest infections, and the more complex, such as scarring lung diseases and lung cancer, and treats them both in the clinic and in hospital. A particular strength of modern pulmonology is interventional bronchoscopy, which lets the specialist look inside the airways and take precise samples without surgery. Prevention is part of the work too, with smoking cessation support a central and effective service.

The conditions seen in a chest clinic cover the whole breathing system. Airway disease is the largest group: asthma and allergic airway disease, where narrowing and inflammation cause wheeze and breathlessness, and chronic obstructive pulmonary disease, usually from long-term smoke exposure, which includes chronic bronchitis and emphysema. Lung infections such as pneumonia, bronchitis and tuberculosis are diagnosed and treated, and the interstitial lung diseases, including pulmonary fibrosis and sarcoidosis, are scarring conditions that need early detection and careful long-term management. Thoracic oncology covers the diagnosis and staging of lung cancer. Sleep-disordered breathing, in particular obstructive sleep apnea, is a major area, as are pleural diseases such as fluid around the lung and a collapsed lung, and the pulmonary vascular diseases, including pulmonary embolism, where a clot blocks the lung vessels.

Treatment is matched to the condition and is mostly medical. Asthma and COPD are managed by identifying and avoiding triggers, allergy testing where useful and choosing the right inhaler therapy, supported by pulmonary rehabilitation and, in advanced COPD, long-term oxygen to ease symptoms and protect quality of life. Infections are treated with the appropriate antibiotic, antiviral or anti-tuberculosis course, and the scarring lung diseases with anti-inflammatory or antifibrotic therapy alongside close monitoring. Obstructive sleep apnea is treated with positive airway pressure devices such as CPAP or BiPAP, which the pulmonologist sets up and follows after a sleep study. When lung cancer is found, the diagnosis is confirmed by bronchoscopy and biopsy and the treatment is planned together with oncology and thoracic surgery. Pleural disease is managed with drainage and other minimally invasive techniques. Throughout, smoking cessation is actively supported, because it is one of the most powerful treatments in the whole field.

Diagnosis in pulmonology blends function testing, imaging and direct sampling of the airways. Lung function tests measure how much air the lungs can move and how freely it flows, revealing the narrowing of asthma and COPD and tracking the restriction of scarring disease over time. Chest imaging, from a simple x-ray to high-resolution CT, shows the structure of the lungs, infections, nodules and the pattern of interstitial disease. Bronchoscopy passes a thin camera into the airways to inspect them and take samples, and endobronchial ultrasound guides precise biopsies of the lymph nodes and tissue around the airways, which is central to staging lung cancer accurately without surgery. A sleep study, or polysomnography, records breathing, oxygen and sleep through the night to diagnose sleep apnea and measure its severity. These are supported by blood tests, allergy testing and analysis of any biopsy, so that a breathing problem can be named precisely and followed objectively.

For people who travel, care usually begins with a remote review of symptoms, current inhalers or other medicines and any previous scans or reports, so the right tests can be arranged for arrival. Much of the assessment is outpatient: breathing tests, imaging and allergy testing need no recovery and can often be grouped into a short visit. A sleep study means staying overnight, either in a sleep room or with portable equipment, with results reviewed the next day. A bronchoscopy is done under light sedation and usually as a day case, with a few hours of observation before discharge, and a slightly longer stay if a biopsy is taken. Because many chest conditions are long-term, a clear written plan is a key part of the visit, with inhaler technique, medicines and follow-up that a doctor at home can continue. Interpreter and international patient support is widely available to help with appointments, consent and instructions, and remote follow-up keeps the team reachable as results come back.