Although some patients with vocal cord nodules and polyps have been operated to remove organic lesions, the voice still cannot return to normal, which shows that pathological vocalization can lead to dysmotility of laryngeal muscles and incomplete closure of the vocal chambers, while shouting can be followed by organic lesions of the vocal cords, which is a mutual causal relationship. Only to remove organic lesions, but not to correct functional lesions is bound to be ineffective or difficult to sustain. Here are some methods and techniques of vocal and breathing training, hoping to get the desired effect of voice recovery through self-training. Breathing techniques: abdominal breathing, fast inhalation and slow exhalation, inhalation is not full abdominal breathing, is the use of abdominal muscle contraction and pressure of a deep breathing. The abdominal muscles contract to increase abdominal pressure, abdominal pressure makes the diaphragm push upward, increasing the pressure in the chest cavity, thus making the air in the lungs exhale powerfully. The method of training the inspiratory muscle groups: 1, the method of holding the breath The practice is to take a large breath, after inhaling enough air, hold the breath, do not exhale, hold the breath for as long as possible. Slowly you can exercise the ability to hold your breath for a long time, that is, the ability to fix the thorax. 2, the method of counting The practice is to take a large breath, after taking a full breath, the thorax fixed; then with a very light and thin, only they can hear the voice count 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 …… until you can no longer count; then, take a breath again, so repeated training. This will count more and more numbers, and the time will be longer. It is best to be able to count to more than 50 in one breath. Vocal skills: the use of resonance, so that the natural larynx down before vocalization to open the mouth wide, so that the back of the neck erected, so that the epiglottis cartilage stand up, the tongue body down up, so that the soft palate and the uvula put down. A straight tube is formed. After the sound emanates from the vocal cords, it rushes upward directly to the top of the nasopharynx and returns at the top of the head. This sound is very loud, thick and metallic. This is the “cephalic vocal method”. To test whether this method is used correctly, just feel the back of the head and the top of the head when you speak to see if there is a vibration sensation. Before speaking, you must take a full breath and then speak slowly and smoothly using your breath. Consciously lower your head forward and lower your jaw inward to relax your neck muscles and naturally straighten the back of your neck so that your throat and nasopharyngeal resonance cavity become a straight line. The way to maintain the voice can be summarized in the following sentences: Smooth spirit and peaceful mind. Eat well and be careful of cold and warmth. Take time to live and work evenly. Practice and protect your voice with consistency.