Patients who have partial laryngectomy can speak after the surgery. Patients with total laryngectomy cannot speak after total laryngectomy under normal circumstances because their vocal cords have been completely removed and only the laryngeal recurrent nerve is left. The doctor will teach the post-total laryngectomy patient to pronounce with the esophagus. If it is impossible to learn esophageal pronunciation, electronic larynx can be applied, which can be installed 20-40 days after the operation and placed over the fistula of the total laryngectomy to pronounce with the neck muscles so that you can speak. The electronic larynx installed after total laryngectomy can be used for normal articulation within 1 year. There are advantages and disadvantages of both the esophageal voice and the electronic larynx. The electronic larynx is clear but has a metallic sound, while the esophageal voice is well pronounced and can be pronounced the same as a normal person. It is also possible to create a fistula between the trachea and larynx during total laryngectomy to form a living flap, thus solving the pronunciation problem.