Pharyngeal cancer is a general term for cancers of the nasopharynx, oropharynx, and larynx. There is a significant gender difference in the incidence of pharyngeal cancer, which mostly occurs in men. Patients have hoarseness, abnormal sensation in the throat, pain, cough and other symptoms, which are similar to the symptoms of laryngitis, so many people do not think of them, thus delaying the disease and missing the best treatment time. At the later stage of development, patients will have difficulty in breathing, coughing and bleeding, painful swallowing and even loss of voice, and if cancer metastasis occurs, it will be life-threatening. Although the cause of laryngopharyngeal cancer has not yet been identified, what has been recognized is that its development is closely related to certain lifestyle habits. Among them, excessive alcohol consumption, smoking and poor nutrition are the 3 main causes of hypopharyngeal cancer. Paying attention to the following aspects can help prevent laryngopharyngeal cancer. Quit drinking and smoking Long-term heavy drinking makes the larynx congested and edematous, and leads to malnutrition and low immune function, which lays the foundation for cancer formation. Smoking directly damages organs and forms laryngeal cancer. The longer the age of smoking, the higher the incidence rate. Nicotine, coal tar and benzo(a)pyrene in cigarette are all carcinogens. 2.Stay away from chemical carcinogenic substances Harmful gases and dusts in the production process, such as silica dust, chlorine and ammonia, bromine and iodine, should be properly handled. 3.Pay attention to precancerous lesions White laryngeal spots are precancerous lesions of laryngeal cancer, which are white patches on the mucous membrane of the vocal cords due to poor epithelial keratinization, and are pathological changes caused by upper respiratory tract infection, smoking, harmful gas stimulation, excessive use of voice, etc. They are closely related to the formation of laryngeal cancer and must be actively prevented. 4.Prevent poor diet Do not eat pickles, acid and spicy stimulating foods excessively, and forbid eating moldy food, which is more important for those who suffer from chronic laryngitis. Should develop good dietary hygiene habits, such as less meat and more vegetarian, eat more fresh fruits, vegetables, etc.. 5, avoid shouting such as improper vocalization, excessive use of voice, can make the vocal cords acute congestion or bleeding, more attention during the cold. And do not over-vocalize, pay attention to the vocal cords appropriate rest. Pay attention to oral cleanliness, do not make the outside unclean things into the laryngeal cavity, from the disease caused by bacterial infection. 6, learn to release pressure, avoid bad emotions Today’s society is fast-paced, all industries feel the pressure. Long-term life, work pressure if not effectively released, the body and mind will be damaged. Many people are not good at communication and do not release pressure by themselves, so they are easy to get throat cancer or other tumors. In addition, people who are grumpy and love to sulk are also all prone to malignant tumors.