It is normal for a 12-year-old boy to change his voice. When a boy enters puberty, he is prone to laryngeal knots when hormone levels are high, causing the vocal cords to become wider and thicker, and a change in voice will occur. The vocal cords become wider and thicker as a result of the change in voice. It is even more important to protect the vocal cords during the change in voice.
When boys enter puberty, between the ages of 11 and 15, there will be a laryngeal knot, as well as the phenomenon of rapid growth in height and weight after the change of voice, and there will be the development of secondary sexual characteristics, such as pubic hair, as well as testicles, penis, and then spermatorrhea will occur.
During this stage, it is necessary to pay attention to rest, do not yell or sing loudly, otherwise it will easily lead to damage to the vocal cords, forming irreversible hoarseness. And pay attention to spicy and stimulating food, seafood, not recommended.
12-year-old adolescent boys appear to change voice is a normal phenomenon, if you find the voice obviously hoarse and other discomforts, it is recommended to seek medical attention in a timely manner.