Physical+Boys+PDHS

Type in the content of your page here .__Physical Changes in Boys __ Boys usually notice the physical changes in puberty around the ages of eleven to thirteen. Many people go through different stages of puberty at different times __Height__A boy may have a "growth spurt" and shoot up 5 to 12 in one year. If you tower over the boys in your class right now, they'll catch up soon. Girls start getting taller around age 10; guys start around age 12 and keep on growing.

__Body Shape __*As a boy grows taller, his body shape changes, too. __Voice__
 * His shoulders get wider - giving him more physical strength.
 * His muscles expand in size.
 * Even his face changes - his nose and jaw get more prominent, and his forehead gets higher.

Boys voices get deeper as the larynx, or voice box, grows. Sometimes the larynx muscles will make his voice crack, which is completely normal. A guy's voice can change really suddenly or over a period of time. __ Hair __

Like girls, boys get a little hairier during puberty, too - in the pubic area and underarms, and maybe the outer arms, legs, chest, stomach, shoulders, and back. Facial hair comes later, starting on the upper lip, then on the cheeks and chin. At first, a guy's body and facial hair will be soft, but it gradually gets rougher. The coarse texture makes body and facial hair more noticeable on men than on women, and more visible on guys with darker hair. __ Chest __ A young guy might have some slight swelling in his chest around the nipples, and his chest may feel tender. . His hormones are working overtime. This phase usually lasts less than a year.

__Skin and acne __

During puberty, a boy's glands become really active. Certain glands cause a secretion of more oils in the hair and skin, while others increase the amount a guy perspires. Many boys start to develop acne. As with girls, boys usually need to start washing their faces and hair much more, and start using deodorant. __ Genital __Below is a diagram of changes of the pubic area. As you can see the penis enlarges and so do the testis. The human penis is approximately 13–15cm .