Bronchoscopy is a medical procedure that allows doctors to examine the airways and lungs. During this procedure, a thin, flexible tube called a bronchoscope is inserted through the nose or mouth and into the lungs. This tool has a light and camera, enabling doctors to see any abnormalities, such as infections or tumors, and to take tissue samples if needed. The procedure is usually done in a hospital or clinic and may require sedation to keep the patient comfortable. Bronchoscopy can help diagnose various lung conditions and guide treatment options, making it an important tool in respiratory medicine.