A boy goes through many important changes during puberty. His body beefs up, his voice cracks as it changes, he becomes stronger, and he begins to mature sexually. Before you know it, your little boy has become a young man. Boys mature a little slower than girls. For boys, puberty begins at age 11 on average, although starting as early as age 9 or as late as age 14 is still considered normal.
Routine screening tests for men - Harvard Health
Until he was 10 or 11, Robert was cheerful and lively, if sometimes distractible and hyper. Then came 12 and What happened were puberty physical changes and adolescence psychological and social changes , which occur when children begin maturing into adults. However, their particular problems and stresses may differ somewhat. Here are some issues to consider.
Male Reproductive System
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People might think guys don't worry about their looks. Guys may not talk about their bodies as much as girls do. But they spend plenty of time in front of the mirror. And for some guys, body image can be a problem. Body image is the way you think and feel about your body and looks.