The common nasal cavity is nasal sinus cancer, nasal cavity cancer and nasopharyngeal carcinoma, and the common throat is tonsillar lymphoma, laryngeal cancer, supraglottic and subglottic malignant tumor and epiglottic malignant tumor. Malignant tumor of middle ear and malignant tumor of middle ear cavity can be seen in middle ear. Therefore, cancer in otolaryngology mainly refers to malignant tumors that occur in otorhinolaryngology and nasopharynx. Nasopharyngeal carcinoma, maxillary sinus carcinoma, malignant lymphoma, laryngeal carcinoma and middle ear carcinoma are common.
Prevention of the causes of laryngeal cancer belongs to the first-level prevention, as follows:
First, don't drink.
Long-term heavy drinking makes the throat congestion and edema, and leads to malnutrition and low immune function, which lays the foundation for the formation of cancer.
Second, no smoking.
To prevent laryngeal cancer, smoking will directly damage organs and form laryngeal cancer. The longer you smoke, the higher the incidence of laryngeal cancer. Nicotine, coal tar and benzopyrene are carcinogens in cigarettes.
Third, stay away from chemical carcinogens.
The chemical carcinogens related to laryngeal cancer are sulfur dioxide, chromium, arsenic and so on. The living and production environment is polluted by air. Inhaling the above harmful gases and dust will damage the throat and must be protected.
Fourth, prevent the harm of bad eating habits.
In order to prevent laryngeal cancer, some people often eat hot pot with three friends and four friends regardless of winter and summer, and the stimulation of mala Tang is constant. Such long-term eating habits are not only harmful to the throat, but also harmful to the eyes, trachea, lungs, esophagus and stomach, which will not only cause diseases, but also worsen and form cancer.