A bronchoscopy procedure is done to allow the doctor to have a look at the patient’s throat, trachea, larynx, and lower airways by using a device known as a bronchoscope. It is performed to either diagnose or treat a wide range of lung conditions and problems and is performed by a lung specialist – pulmonologist or thoracic surgeon. It can also be used to remove a small sample of tissue from those areas, known as a biopsy.