Laryngeal cancer is a malignant tumor of the larynx, and the most common type of laryngeal cancer is laryngeal squamous cell carcinoma. The incidence of laryngeal cancer is significantly higher in people who smoke or drink alcohol regularly, while laryngeal cancer can also occur in people who do not smoke or drink alcohol, but it is very rare. Symptoms of laryngeal cancer: Typical symptoms of laryngeal cancer include hoarseness, sore throat, earache, difficulty in breathing or coughing with blood in sputum. A lump in the neck is also a common symptom of laryngeal cancer. Although these symptoms can also appear in other unimportant diseases, if they occur, they should still go to hospital for detailed examination to rule out the possibility of laryngeal cancer. 3.How to diagnose laryngeal cancer? The diagnosis of laryngeal cancer depends on careful laryngeal examination, firstly, detailed medical history should be taken, then indirect laryngoscopy of larynx should be performed, and fiberoptic laryngoscopy should be performed for patients with unclear larynx, the latter is a fiberoptic catheter with light source through nasal cavity or oral cavity, if a lump or other suspected lesion of unknown nature is found, local tissues should be taken for pathological examination. The pathologist will issue a pathology report in 3-5 days to determine whether it is laryngeal cancer.