Patients with hoarseness, in addition to the change of voice quality, such as lower and coarser pitch, will have an impact on one’s image temperament; in serious cases, they can even only make whispering sounds or lose their voice, which directly affects patients’ life and psychological health. There are many causes of hoarseness, but it is necessary to be alert to the fact that the primary manifestation of malignant laryngeal cancer is hoarseness. This is because the vocal cords themselves are symmetrical movement, once they are compressed by tumor, there will be a change in pitch if the vocal cords are not coordinated on one side, physically speaking, it means the frequency and wavelength of the voice has changed. When there is sore throat, the disease has developed to the middle and late stage. It is mainly seen in men over the age of fifty, although with the low age of laryngeal cancer, it has now expanded to people in their forties. In addition, long-term smoking, irritability and anger, and frequent consumption of cured meat and bacon which contain benzine and tar are also likely to induce laryngeal cancer. Of course, hoarseness can also originate from other reasons, talking a lot, especially people in these professions (sales, teachers, acute especially women, leaders, etc.). This is because the two vocal folds collide together and mechanical friction over time can easily lead to vocal fold nodules, vocal fold polyps or vocal fold inflammation, and hoarseness ensues. In addition, staying up late or after exertion will lead to abnormal acid metabolism in the body, lactic acid increases, the blood acidic situation is easy to cause congestion, edema, inflammation and other performance, causing hoarseness of the vocal cords. But don’t think that hoarseness is all about the vocal cords, hoarseness can also be caused by lesions in the adjacent organs of laryngeal diseases, and can also be a local manifestation of systemic diseases. Some tumors in the adjacent laryngeal tissues and organs can cause hoarseness by compressing the recurrent laryngeal nerve, and hoarseness can also be caused by stimulation of the recurrent laryngeal nerve after neck surgery or chest surgery. Therefore, patients with hoarseness, especially those who have been hoarse for a long time, must go to the ENT department of the hospital to check the larynx and the lesions of the adjacent organs, and if necessary, perform fiberoptic laryngeal bronchoscopy to better understand the laryngeal lesions so as not to delay the time of treatment. It is understood that after radiotherapy and surgery, 70-80% of laryngeal cancer patients can achieve a five-year survival rate if the tumor is cleanly cut. For vocal cord nodules or vocal cord polyps, carbon dioxide laser excision under general anesthesia and some blood-activating drugs can be used to completely cure them. Inflammation of the vocal cords can be cured with some medications. Suggestions: “To prevent hoarseness, people with occupational needs should speak as little as possible, preferably for no more than 2 hours continuously, drink more water, and slow down their speech. The muscle tension will make the vocal cords move in an abnormal position, so do not be overbearing when you speak, sit upright, luck “chest and abdomen joint breathing” not only to save energy, speak more confidently. The voice actually also needs beauty.”