Date: June 20, 2019

Periods of rain. Wind north 30 km/h gusting to 50. High 21. UV index 3 or moderate.


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Sexual Health Links

Sexual Health (main)

Birth Control & Contraception

Emergency Contraceptive

Harm Reduction Program

Pregnancy Testing and Choices


Reproductive Health

Sexual Health Clinics

Sexual Orientation and Gender Identity

Sex and Safety

Sexually Transmitted Infections (STIs)


This page was reviewed or revised on Monday, May 28, 2018 9:05 AM

Puberty is a transition time in one's life when a child's body develops into an adult body. For some, puberty may be an exciting time, for others, it may be a scary time. Everyone will eventually go through puberty. Learning about one's body, how to care for it and the process of puberty make the process 'less scary' for children and are important steps for healthy growth and development. As an adult, you can help by listening to children's concerns, using proper names for body parts and functions during discussions, answering questions honestly, and helping to access reputable resources.

During puberty, there are many physical and emotional changes that start to happen between the ages of 9-15. For some, puberty may begin sooner, for others it may begin later. These changes are gradual and are usually complete by late teens. At the beginning of puberty, the pituitary gland releases 'chemical messengers' or hormones to the reproductive organs. Further hormones, estrogen and progesterone, are released from the ovaries and testosterone is released from the testicles.

Once hormones are circulated, the changes during puberty may start to be noticed:

  • Increased growth, body mass, weight gain
  • Increased sweatiness and/or body odour
  • Increased oiliness to skin and/or pimples
  • Moodiness, new emotions and feelings
  • 'Crushes' and attractions
  • Lower pitch to voice
  • Development of hair under arms, around genitals, face and chest (male)
  • Changes to body outline such as widened hips (female) and broader chest (male)
  • Breast development (female) and occasional temporary swelling or tenderness behind the nipples (male)
  • Increased size of genitals
  • Ovulation and menstruation (female)
  • Spermatogenesis and wet dreams (male)

For further information about puberty please visit the links below or contact Lambton Public Health at 519 383-8331 #3547.


Resources for Educators