Boys tend to have the following symptoms after puberty: First, rapid growth in height. Children tend to grow steadily before puberty, with a height increase of about 5-7 cm a year, while after puberty they will grow rapidly, often about 10-20 cm a year. Next, the appearance of the laryngeal nodes and the change of voice are manifested. Then, pubic hair and axillary hair appear. Finally, children may have enlarged testicles, thickened and enlarged penis, and even spermatorrhea. If some of these symptoms are present, puberty is indicated.