Puberty

Key Stage 3

Meaning

Puberty is when an organism goes through physical and mental changes that make it able to produce offspring.

About Puberty in Females


A diagram showing some of the changes that happen to females in puberty.

About Puberty in Males


A diagram showing some of the changes that happen to males in puberty.

It's normal

Puberty can be a confusing experience and people always have lots of questions. These are the answers to some common questions you might like to know.

Girls:

One breast will grow a bit quicker than the other.

Once the breasts have grown one is often bigger than the other.

Your first period may be unexpected so you may want to keep a sanitary towel just in case.

You should have your first period between 10 and 15 years old. If it happens a bit earlier that's not a problem. If it doesn't happen by 16 you should speak to a doctor.

At first your period might not happen every month.

Your period should not last more than 7 days. If it lasts longer, then you should talk to a doctor.

The vagina sometimes releases some clear fluid. If the fluid is cloudy or yellow you should talk to a doctor.

Boys:

One testis hangs slightly lower than the other.

You will get random erections that can be embarrassing but are perfectly normal.

Sometimes you will wake up with an erection.

You may have a 'wet dream' where you ejaculate in your sleep. You may want to find out how to use the washing machine if you are embarrassed.