How long the surgical procedure for laryngeal swelling takes depends mainly on the type, nature of the laryngeal swelling. In general, benign laryngeal swelling surgery time is 1 to 2 hours; if malignant, the operation may take longer, even need 7-8 hours. Laryngeal masses are usually cysts in the larynx, or tumors in the larynx, etc. Generally, the scope of the mass is small, and it is easy to determine the scope of the mass; the mass located in the superficial position of the larynx has a wide field of vision, and generally the patient can be excised in an hour or so after anesthesia to complete the surgery. If the lump is located in hypopharynx or the location of the lump is more hidden, it needs to be accurately located with the assistance of imaging and then resected, which takes 1 to 2 hours; if the laryngeal cancer lesion is extensive, in addition to local tumor resection, it also includes lymph node sweeping and repairing after local resection, and the whole surgical process will take about 4-5 hours; if free flap grafting with anastomosis of blood vessels is needed, it will even take 7-8 hours. Appearance of laryngeal swelling, it is recommended to hospital consultation, diagnosis is clear and standardized treatment.