At what age do boys start to develop?

Nov 13, 2024 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, boys typically begin to develop between the ages of 9 and 14. If puberty starts early, development may begin as early as age 9. For those who develop later, changes may not start until age 14. During this period, the body will gradually undergo changes due to the effects of hormones. The earliest physical change of puberty is the enlargement of the testicles.

Generally, boys usually begin to develop between the ages of 9 and 14. If precocious puberty occurs, development may start as early as age 9. If puberty is delayed, development may not begin until age 14. A detailed explanation is as follows:

Between the ages of 9 and 14, under the influence of hormones, the body will gradually undergo a series of changes. The earliest physical change is testicular enlargement, accompanied by the scrotal skin becoming looser and darker in color. As the body continues to grow and develop, the penis will also gradually lengthen and thicken, eventually reaching the size typical of an adult male.

Following these changes, sparse, soft, and light pubic hair will appear at the base of the penis. Over time, the pubic hair will increase in quantity, become coarser and darker, and spread upward over the pubic bone and onto the inner thighs. Subsequently, axillary hair, facial hair, voice changes, and the appearance of an Adam's apple will occur, until full development is achieved.

However, boys undergoing puberty may experience early or delayed puberty due to factors such as heredity, malnutrition, or chronic illness. If a boy experiences precocious puberty, he may begin developing as early as age 9 and display a series of developmental characteristics. If development is delayed, it may not begin until age 14, with developmental signs appearing only thereafter.

In daily life, it is recommended that children develop good habits regarding sleep and diet, avoid chronic late-night sleep deprivation, and engage in regular physical activity to support healthy physical development. If signs of precocious puberty occur, prompt medical consultation at a hospital is advised to prevent potential delays in treatment.

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