In recent years, the incidence of laryngeal cancer has been increasing significantly. The incidence rate of laryngeal cancer in men is significantly higher than that in women, with a male to female ratio of about 10:1; the incidence rate of laryngeal cancer in urban residents is two to three times higher than that in rural areas. When there is foreign body sensation in the throat, throat discomfort, throat pain and hoarseness, many people first think of pharyngitis and often go to pharmacies to buy throat-clearing drugs. Sometimes the medication can make the throat discomfort disappear, but sometimes it hides the culprit of the disease, laryngeal cancer, because the early signs of chronic laryngitis and laryngeal cancer are very similar. If a man over 40 years old has a long history of smoking and has hoarseness for more than 3 weeks, do not think it is “chronic laryngitis” without going to the hospital for treatment. Early signs 1. Hoarseness. Hoarseness will appear in the early stage of laryngeal cancer. Once hoarseness occurs, especially if it lasts for a long time, you should first go to ENT clinic for laryngoscopy and, if necessary, pathological examination to make a clear diagnosis. 2. Discomfort in the pharynx or slight painful sensation in the pharynx. Patients with early or middle stage supraglottic laryngeal cancer often do not have symptoms such as hoarseness and dyspnea, but only pharyngeal discomfort and pharyngeal foreign body sensation, or slight pharyngeal pain, which are often mistaken as “pharyngitis” or “chronic laryngitis” and ignored. As the tumor grows and expands, the patient will have hoarseness and difficulty in breathing. Some of them also have difficulty in swallowing and obstructed swallowing. Clinically, patients with supraglottic laryngeal cancer do not have hoarseness, but there is a neck mass or lymph node metastasis. 3. Foreign body sensation in throat, dry cough or blood in sputum. The early symptoms of subglottic laryngeal cancer are even less obvious, often without hoarseness and other symptoms, sometimes only a foreign body sensation in the throat, dry cough or blood in the sputum, etc., but by the time the diagnosis is confirmed, lymph node metastasis in the neck has already appeared. In order to detect laryngeal cancer at an early stage and improve the cure rate of laryngeal cancer, it is necessary to raise the vigilance of laryngeal cancer. Once foreign body sensation, sore throat, hoarse voice and unexplained swollen lymph nodes in the neck occur, you should go to the hospital and have the necessary tests done. Indirect laryngoscopy is an important routine examination tool to detect problems in the vocal cords of the laryngeal cavity, and also to observe the root of the tongue and laryngopharynx. Fiberoptic laryngoscopy and electronic laryngoscopy can make up for the deficiency of indirect laryngoscopy and observe the larynx and pharynx more clearly. If new organisms are found in the larynx, pathological biopsy can be performed under fiberoptic laryngoscopy or electronic laryngoscopy. CT examination of larynx is meaningful for the analysis of tumor size, location, degree of infiltration, extension to the outside of larynx and lymph node metastasis in the neck. If the diagnosis of laryngeal cancer is established, patients should go to regular hospitals for treatment. At present, radical laryngectomy plus composite laryngeal function reconstruction is mainly used in clinical practice, which can not only completely remove the tumor, but also preserve the articulatory function, respiratory function and swallowing function of the larynx, and greatly improve the survival quality of patients.