07/04/2024 2:08 p.m.

What Is Early Puberty and Why Does It Happen?

Dr. Niels van de Roemer
Dr. Niels van de Roemer Medical Adviser
A Topic That Affects Us All

Why do girls today get their period much earlier than before? – What every woman should know.

If you talk to your daughter, niece, or a friend’s child about their first period, you might be surprised. While many women used to get their first period (menarche) at 16 or 17, today’s girls often experience it at 11, 10, or even 9 years old. This is no longer unusual – it’s the new reality. Over the past century, the average age of menarche has shifted from 17 to around 12 years old. This change impacts not only the daily lives of girls but also our role as mothers, mentors, aunts, and older sisters.

early puberty

What Does It Mean When Puberty Starts Early?

Puberty marks the beginning of a new stage of life. Hormones transform the body, new emotions emerge, and insecurities surface – and for many girls, this now happens while they’re still in elementary school. Early signs like breast development, hair growth, or body odor can appear in some girls as young as seven or eight.

Medically, early puberty (precocious puberty) is defined as the start of physical development before the age of 8. While this only applies to a small number of children, the overall trend is that puberty begins earlier today than in past generations.

Why are puberty and periods starting earlier?

Environmental Toxins and Hormone-Like Substances

Many everyday products contain chemicals that mimic hormones in the body, such as:

  • Plastic packaging (with softeners like BPA)
  • Cosmetics, especially those with synthetic fragrances
  • Pesticide residues in food
  • Flame-retardant chemicals in furniture and clothing

These substances can disrupt hormonal balance – often without us realizing it. Girls are particularly sensitive to these influences because their bodies are still developing.

Diet, Obesity, and Lack of Exercise

Children’s diets have changed dramatically. Processed foods, sugary drinks, and snacks are now part of everyday life – often combined with less physical activity. This not only leads to weight gain but also to earlier hormone release. Body fat produces leptin, a hormone known to influence the onset of puberty.

Emotional Stress and Mental Pressure

Stress also plays a role – whether from family conflicts, academic pressure, social challenges, or emotional neglect. Studies show that girls under chronic stress often enter puberty earlier. The body reacts with a biological "fast-forward program".

So important

What Does This Mean for Mothers, Mentors, and Role Models?

When girls mature physically at 8 or 9 years old, they are often not emotionally ready to understand or cope with these changes. This is why we, as women, need to guide them with openness, support, and love.

Why We Should Talk About Periods Earlier

Many women grew up in an environment where menstruation was treated as something embarrassing or hidden. These attitudes can still affect how we talk about periods today. But during early childhood and pre-puberty, a girl’s self-image and body confidence are being shaped – and this includes how she feels about her period.

If no one talks openly about changes like sore breasts, new hair growth, or the first signs of puberty, girls may start to see their bodies as “weird,” “uncomfortable,” or “wrong.” Silence creates shame. A girl who feels her body changes are a taboo topic learns early that her body is something to hide, rather than something natural and beautiful.

Start the conversation before the first period – as soon as the first signs of puberty appear. Speak openly, kindly, and in age-appropriate terms about menstruation, hormones, emotions, pads, and tampons. Use simple, clear language and don’t shy away from calling things by their names.

Give her the message: “Your body is perfect just the way it is. Everything that’s happening is natural, important, and beautiful.”

Open and honest conversations about periods help prevent shame and build long-term confidence. Girls who understand their bodies develop a healthier relationship with themselves – and navigate puberty with greater self-esteem.

Convey this message to your child: "Your body is good just the way it is. Everything that happens is natural, important, and beautiful."

An open, trusting approach to the topic of periods prevents the development of feelings of shame and strengthens self-esteem in the long term. Girls who understand what is happening with their bodies develop a healthier relationship with themselves – and go through puberty with greater confidence.

What Are the Effects of Early Puberty on Girls?

A body that matures faster than the mind can be overwhelming. Girls with early menarche are at a higher risk of:

  • Depression and anxiety disorders
  • Low self-esteem and negative body image
  • Early sexual experiences, sometimes under peer pressure
  • Hormone-related illnesses such as breast or uterine cancer later in life

This is why it’s so important to give them the tools for confidence, body acceptance, and knowledge – ideally before the age of 10.

A New Body Awareness Begins With Education and Trust

Early puberty is not the end of the world – but it is a call to action for us as women to support our daughters, nieces, students, or goddaughters more closely. We can help the next generation go through this crucial stage of life with dignity, knowledge, and self-confidence.

The first period is a milestone. It can be a moment of uncertainty – or a moment of strength and connection. We play a key role in shaping how our girls experience this moment.

Your Daily Companion

Discover Teena

Have you noticed your body starting to change? Maybe you’ve just discovered your first breast buds – the very first sign of puberty. Now is the perfect time to meet Teena!

With Teena, you’ll learn step by step what’s happening in your body – without stress or confusion.

  • Know the exact day your next period is coming.
  • Track your daily temperature, symptoms, and emotions to experience your personal cycle journey.
  • Get answers to your questions, practical tips for daily life, and learn how to understand your feelings.

FAQs

When is a period considered “early”?

A period is considered early if it begins before the age of 10. The medical definition of early puberty (precocious puberty) in girls starts when physical development begins before the age of 8.

What are the signs of early puberty?

Common early signs include:

  • Breast development
  • Pubic hair growth
  • Body odor
  • Growth spurts
  • Mood swings
Why do some children feel embarrassed during puberty?

During puberty, the body changes visibly – often faster than the child can emotionally process. At the same time, awareness of others’ opinions grows. Comparing themselves with peers, feeling insecure about new physical changes, and the lack of open conversations often lead children to feel embarrassed about their bodies. Openness, education, and acceptance are key to helping reduce these feelings of shame.

Learn more

Learn all about your period, the menstrual cycle, and possible symptoms.

Spotting vs. Menstruation: How to tell the difference

Learn how to recognize the first signs of an approaching period. This guide explains the signs, preparation, and support related to the first menstruation.

Sources

https://www.nytimes.com/2022/05/19/science/early-puberty-medical-reason.html

https://www.msdmanuals.com/de/heim/gesundheitsprobleme-von-kindern/hormonelle-st%C3%B6rungen-bei-kindern/verfr%C3%BChte-pubert%C3%A4t

https://www.aerzteblatt.de/archiv/fruehe-pubertaet-psychologisches-ruestzeug-noetig-0680df1b-f724-4ac6-835f-913b2daaf1e0

https://jamanetwork.com/journals/jamapediatrics/fullarticle/2760573