Laryngeal cancer is a malignant tumor that occurs in the epithelial tissue of the laryngeal mucosa. It is a common malignant tumor in the head and neck region, but the symptoms are not obvious in the early stage. Laryngeal cancer is more common in middle-aged and elderly men, and the cancerous tumors can be classified into three types based on their location: supraglottic, glottic, and subglottic. The main functions of the larynx are breathing, coughing due to irritation, swallowing, and talking, so all four basic functions will be slightly impaired once a patient develops laryngeal cancer.
Most laryngeal cancer patients are long-term smokers, and they usually experience chronic hoarseness. If the cells on the vocal cords begin to bleed, sometimes blood may be present in the phlegm. In addition, alcohol consumption, HPV infection, long-term exposure to asbestos, mustard gas or petrochemical gases, and chronic acid reflux are also risk factors for laryngeal cancer.
患上早期喉癌病徵並不明顯，因此高危人士應定期接受咽喉普查，於局部麻醉下，利用內窺鏡檢查該鼻腔及鼻竇開口，從而達至在未出現任何症狀前，能夠及早發現，以便接受適當的診療。
The above information is for reference only. If you have any medical questions, please consult your doctor.
