Vocal cord polyps, vocal cord nodules, chronic laryngitis and other vocal cord voice lesions, even after surgery or other treatments once improved, but if vocal habits are still not corrected correctly, the lesions may still occur again. Therefore, it is important for voice patients to pay more attention to proper voice training in addition to medication and surgical treatment. 1. Don’t use your voice excessively. Excessive use of voice is the abuse of voice (use of voice) that exceeds one’s ability. The vocal ability of each person has three aspects: pitch (frequency range of voice), strength (tension of the vocal cords) and time (time to pronounce the voice). 2. Actors and teachers should not eat too much before singing or teaching, and it is better not to eat two hours before. 3. The vocal cords have physiological changes during the period of voice change, menstruation and pregnancy. 4, bad habits, such as smoking, alcohol, chili peppers and cold drinks after singing, are not good for the laryngeal organs. Therefore, we should try to change such habits. 5. We should change the habit of clearing the throat. Many people may often use this action to cough up phlegm in the throat or to make their voice clearer, but this action makes the vocal cords instantly and severely stretched, which can easily cause vocal cord damage. 6, vocal cord polyps, vocal cord nodules after surgery is best to abstain from sound for more than 1-2 weeks. 7, pay attention to voice rest when you have a cold, especially after a cold with hoarseness, or have been diagnosed with laryngitis. 8, soprano singing because the vocal cords are too tightly closed The two sides of the vocal folds rub against each other, so the occurrence of singing occupational disease is more! Tips: If you really need to use the voice should be as far as possible when the bass issued to prevent vocal fold friction. 9, education of children do not shout, especially active boys, prone to vocal fold nodules. 10, hoarseness often occurs in the case of laryngeal muscle fatigue, laryngeal muscle fatigue is generally more difficult to recover, professional vocalists in the practice of voice to pay attention to regular rest.