Otolaryngology or ENT (ear, nose and throat) is the branch of medicine that specializes in the diagnosis and treatment of ear, nose, throat, and head and neck disorders. The full name of the specialty is otolaryngology-head and neck surgery. Practitioners are called otolaryngology's-head and neck surgeons, or sometimes otorhinolaryngologists (ORL). Otolaryngology is one of the most competitive specialties to enter for physicians.