Laryngeal cancer is a malignant tumor mostly found in the larynx, which may be related to viral infection, heredity, and addiction to alcohol and tobacco. Generally speaking, there are no so-called “5 early symptoms” of laryngeal cancer, but depending on the location of tumor tissues in the larynx, patients do show some early symptoms, such as blood in sputum, hoarseness, foreign body sensation and pain in the throat, persistent cough and difficulty in breathing. Early symptoms are important for timely detection of laryngeal cancer, which can be diagnosed and treated as early as possible. 1. Blood in sputum: no matter what type of laryngeal cancer is in the early stage, blood in sputum may appear, which is mainly due to tumor rupture. 2. Hoarseness: when laryngeal cancer occurs in the vocal fold type, that is, when the tumor grows in the vocal fold, usually patients will have hoarseness. 3. Foreign body sensation and pain in the throat: supraglottic type Patients with early stage of laryngeal cancer may have foreign body sensation in the pharynx, starting from foreign body sensation when emptying the throat, and as the tumor grows and the mucous membrane is stimulated, patients will feel foreign body sensation when swallowing, eating or drinking; 4. Persistent cough: Patients with subglottic type of cancer often do not have obvious symptoms in the early stage, some patients can have persistent irritating cough or even blood in the sputum; 5. Breathing difficulty: When the tumor grows up, it will occupy most of the laryngeal cavity, and there will be difficulty in breathing and even airway obstruction, which may also be accompanied by choking cough. Patients with the above symptoms are suspected to have the possibility of laryngeal cancer. At this time, the patient should immediately go to the hospital for medical consultation to clarify the cause through indirect laryngoscopy or electronic laryngoscopy, pathological tissue biopsy, CT and other related examinations. If the diagnosis is confirmed, the patient needs to be treated as soon as possible through surgery, radiotherapy, chemotherapy, etc. Meanwhile, pay attention to maintain emotional stability and avoid depression, fear, anxiety and other emotions from affecting the treatment.