Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

Teenage boy talking on his mobile - puberty

Teenage boy talking on his mobile - puberty
beginning of content

Puberty for boys

2-minute read

Puberty is the time when you grow from a boy into a young man. Everyone goes through it. It can be exciting, but some people find it tough. Here’s what to expect.

Note: We also have an article about Puberty for girls.

How does my body change?

During puberty, your testicles (testes or ‘balls’) start producing the male hormone testosterone. This hormone triggers changes in your body. Suddenly you grow taller and begin to develop muscles. You will also find physical changes happening to your voice, your body hair and your genitals, and possibly even your breasts.

There are plenty of signs that puberty has started. Every boy is different, but here are some of the most common changes to look out for.

  • You grow taller, and you may become more muscular.
  • Your Adam’s apple (larynx) gets bigger and your voice deepens or begins to ‘break’.
  • Your testicles begin to produce sperm.
  • Your body produces more hormones, so you might get erections when you least expect them.
  • Ejaculations can happen while you are asleep. These are called ‘nocturnal emissions’, or ‘wet dreams’. Wet dreams are totally normal.
  • You may get oily skin and hair, and spots (acne) may develop on your face and body.
  • You may find you sweat more.
  • Hair will start to grow under your arms and around your penis and testicles. You may also find more hair growing on your legs and arms. Hair will also appear on your chin and upper lip.
  • You may have mood swings and feel emotional, but your feelings will settle down in time.
  • You may notice a swelling or lump under your nipples. This is normal and it will go away after a few months.

Not sure what to do next?

If you are still concerned about your puberty for boys, why not use healthdirect’s online Symptom Checker to get advice on when to seek medical attention.

The Symptom Checker guides you to the next appropriate healthcare steps, whether it’s self care, talking to a health professional, going to a hospital or calling triple zero (000).

Sources:

WA Health (Teenage health - Boys and puberty booklet), NHS Choices UK (Stages of puberty - what happens to boys and girls)

Last reviewed: August 2017

Need more information?

These trusted information partners have more on this topic.

Top results

Kids' Health - Topics - Puberty - boy changes, girl changes

There is weight gain, particularly on the hips

Read more on Women's and Children's Health Network website

Stages of puberty in boys (male puberty) information | myVMC

In boys, maturation of the reproductive organs causes puberty symptoms like increased penis size, sperm production, deepening voice and chest hair growth.

Read more on myVMC – Virtual Medical Centre website

Physical changes in puberty: girls & boys | Raising Children Network

In puberty big changes happen inside and outside your childs body. Heres what to expect and when physical changes in puberty happen for girls and boys.

Read more on Raising Children Network website

Puberty - Autism Awareness Australia

Children on the autism spectrum often need more time than their peers to deal with major changes, including the changes that will come during puberty.

Read more on Autism Awareness Australia website

Children with autism preparing for puberty | Raising Children Network

Children and teens with autism spectrum disorder need longer to prepare for physical changes in puberty. Our guide has ideas and Social Stories to help.

Read more on Raising Children Network website

Kids' Health - Topics - Sexual reproduction - how babies are made - for kids

When girls and boys reach puberty, their bodies start to change and become more mature

Read more on Women's and Children's Health Network website

Testosterone - Lab Tests Online AU

Why and when to get tested for testosterone

Read more on Lab Tests Online website

Parenting and Child Health - Health Topics - Male breasts at puberty - (gynaecomastia)

One of the unexpected changes that can happen to boys during puberty is that their breasts can start to grow

Read more on Women's and Children's Health Network website

Parenting and Child Health - Health Topics - Puberty

Puberty starts when hormones from part of the brain (pituitary gland) act on the ovaries or testes to begin sexual changes in both boys and girls

Read more on Women's and Children's Health Network website

Kids' Health - Topics - What is puberty?

Puberty is when your body changes from being a child to being an adult

Read more on Women's and Children's Health Network website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Government of South Australia, health department logo Tasmanian government logo Government of Western Australia, health department logo