Laryngology is a branch of medicine that deals with disorders, diseases and injuries of the larynx, colloquially known as the voice box. Laryngologists treat disorders of the larynx, including diseases that affects the voice, swallowing, or upper airway. Common conditions addressed by laryngologists include vocal fold nodules and cysts, laryngeal cancer, spasmodic dysphonia, laryngopharyngeal reflux, papillomas, and voice misuse/abuse/overuse syndromes. Dysphonia/hoarseness; laryngitis (including Reinke's edema, Vocal cord nodules and polyps); *Spasmodic dysphonia; dysphagia; Tracheostomy; Cancer of the larynx; and vocology (the science and practice of voice habilitation) are included in laryngology.