Friends who are addicted to smoking tend to exhale clouds and fog for pleasure, but do not pay attention to the harmful effects of smoking on the body, because the toxic substances of cigarettes are more likely to cause respiratory diseases, especially throat cavity, lung disease. When you have hoarseness, cough and foreign body sensation in your throat, you should pay great attention to it and go to the hospital for consultation and examination in time, because there is a possibility of serious diseases, especially laryngeal cancer. Laryngeal cancer is more common in men than women. It is more common in males than females, and the cause of occurrence is unknown, which may be related to excessive long-term stimulation by smoking, alcohol and harmful chemical gases. 1. Men over 40 years old, especially long-term smokers who have hoarseness and whose treatment has failed for more than 3 weeks, should examine the larynx carefully. To clarify whether there is a mass formed in the laryngeal cavity, and if a mass is found, a biopsy should be done to clarify the diagnosis. CT examination should also be done to find out whether the tumor has metastasized. 2.Stage I and II squamous carcinoma confined to the vocal folds can be treated equally well with either surgery or radiotherapy. If the cancer is beyond the vocal cords or supraglottis, surgery and radiation therapy should be combined. If there are lymph node metastasis in the neck, cervical lymph node dissection should be performed. Chemotherapy can be used for advanced tumors, which can also be supplemented with traditional Chinese medicine. On the basis of complete resection of tumor, part of laryngeal cartilage can be preserved as much as possible to cure tumor and preserve breathing and pronunciation function. However, some patients need to undergo total laryngectomy and intraoperative or postoperative articulation reconstruction.