If a patient has laryngeal cancer, there will be obvious swelling and pain in the throat, and the swelling and pain may be lighter in the early stage, but in the middle and late stage, the patient will have hoarseness, swelling and pain in the throat, and even cough with blood in the sputum. Patients with throat discomfort are advised to go to hospital for examination as soon as possible, and if malignancy is suspected, pathology must be taken in time for clear diagnosis and early treatment, the five-year survival rate of patients will be higher. Clinically, early stage laryngeal cancer can be considered to apply laser surgery or laryngeal laceration, but if the condition is very serious, half laryngectomy or even total laryngectomy may be required. After that, the pain and swelling of patients will be significantly improved. Patients should try not to smoke or drink alcohol in their life.