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Answered 2016-03-14 11:11:21

Puberty usually starts in boys between the ages of 11 and 15 and normally ends between 16 and 18. During this time a boy will develop hair around his penis, on his scrotum, under his armpits, and start to grow facial hair. His penis and testicles will get larger, and his scrotum will appear slightly redder/darker. One testicle will hang lower than the other to prevent collision with the other testicle, and which testicle is lower may change. The normal penis size depends on how far into puberty a boy is. It would not be uncommon for a 14 year old boy who hasn't started puberty to have a 3 inch penis, and it would not be uncommon for a 14-15 year old boy who is far along in puberty to have a 6-7 inch penis. The average adult size is 6 inches. A boy's voice will begin to crack and will deepen in pitch.

There's no way to know when you will start puberty, how long you will take to finish, and what will happen first, it's different for everyone.

On average boys start puberty around the age of 12 or 13 but the range of ages at which it is considered medically normal for puberty to start is from 9 years of age up to the late teens. Once puberty does start it takes on average 6 years to complete the process for boys. However some changes, such as spread of body hair, facial hair and an increase in muscle mass, may continue long after puberty has finished.
== Increase in appetite, growth spurt, increase in muscle mass. Increase in penis size and frequency of involuntary erection, testicles decend. Growth of pubic, underarm, chin and, occasionally, chest hair. The voice lowers. Mood swings. Increased interest, of a sexual nature, in others. == A lot of things. Body hairs starts to grow, as in, facial hair and pubic hair. The penis starts to grow and a boy starts to be able to reproduce. One feels a greater attraction to either women or other boys, both of which are normal. More hormones are produced, so you have a greater change in mood. Most people develop acne, and a boy starts developing larger muscles, just to name some.

Puberty is something that changes a boy entirely and is different for each and every one.

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