Boys typically change their voices between the ages of 12-14. There may be significant individual differences from boy to boy, with some starting to change their voice earlier, around age 11, and others later, perhaps not until age 15-16. When the voice changes, there will be obvious hoarseness and the phenomenon of not being able to sing high notes, accompanied by pharyngeal pain or a foreign body sensation, the laryngeal knot will gradually protrude forward, and other sex organs also begin to develop gradually, signaling that the boy enters puberty, the voice begins to transition from a child’s voice to an adult voice, the voice change period is usually around 12-14 years old. It is important to note that there are individual differences in the period of voice change in boys, some earlier, around the age of 11 began to change their voices, while some later, may have to wait until the age of 15-16 years. In addition the duration of the vocalization period varies, some may last 3-6 months, while others may last 1-3 years. It is important to protect your voice during the period of voice change by following a regular routine, having a balanced diet, and not eating irritating foods. If accompanied by other abnormalities, it is recommended to consult a doctor promptly.