Xiao Zeng is a salesman of a unit. Due to the need of work, he often participates in various banquet activities, and smoking and drinking are inevitable contents. His voice was often hoarse, and he bought some medicine to eat by himself and was able to get better in most cases. Two months ago, after drinking a lot of alcohol, his voice became hoarse again. At first, I didn’t care about it and bought some medicine orally, but it never improved. After several examinations, the diagnosis was confirmed to be advanced thyroid cancer. Hoarseness is a common clinical symptom. In mild cases, the tone becomes lower and coarser, while in severe cases, the voice becomes hoarse and can even only be whispered, or the voice is completely lost. There are many reasons for hoarseness, which can be caused by a mild cold or laryngeal cancer in severe cases. Once hoarseness occurs, it should not be ignored. In addition to tobacco and alcohol stimulation, improper vocal methods and excessive use of the voice, there are many diseases that can cause hoarseness, and some are even very serious. Therefore, for hoarseness, especially hoarseness that lasts for a long time, you should not be careless and should go to the hospital in time for treatment. Common diseases causing hoarseness 1, acute and chronic laryngitis; 2, vocal cord nodules and vocal cord polyps; 3, laryngeal obstruction; 4, laryngeal edema; 5, laryngeal nodules; 6, benign laryngeal tumors; 7, laryngeal cancer. When laryngeal tumor occurs, the earliest symptom is hoarseness, which is progressively aggravated, accompanied by painful swallowing and difficulty in breathing, etc. Middle-aged and elderly patients with long-term smoking history should be alert to the possibility of laryngeal cancer if hoarseness lasts for more than one month. In addition, laryngeal tumors such as esophageal cancer and lung cancer can also cause hoarseness after compressing the laryngeal nerve.