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📊 The Research

Why Periods Are Still Sidelining Girls

Periods remain a significant barrier to girls' participation in swimming. In 2024, Eltee Sydney surveyed 2,302 Australian girls aged 11–16, revealing:

  • 63.9% have quit or avoided sport due to their period.
  • 67.6% said swimming was the first sport they gave up.
  • Only 20.7% feel confident using their current period products during physical activity.
  • 79.3% expressed concerns about leaks or product failure during sport.
  • Only 20.7% feel confident using their current period product while playing sport.


When asked why they dropped out, girls pointed to:

  • Leaks and pad visibility (59.2%)
  • Fear of products shifting during movement (58.6%)
  • Feeling unable to perform at their best (57.4%)
  • And a major one: “Tampons are scary” or “I didn’t know how to use one”

These findings underscore the need for effective solutions to keep girls engaged in swimming during their menstrual cycles.

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🔍 Download the full report: 📄 The Impact of Puberty on Girls’ Participation in Sport – 2024 Summary (PDF)

Swimming Australia's 'Ignite Athlete Program' provides valuable insights into the menstrual cycle's phases and their potential effects on athletic performance:​

  • Follicular Phase (Day 1–12): Begins with menstruation; estrogen levels start to rise, potentially enhancing energy and mood.
  • Ovulation (Around Day 14): Peak estrogen levels; some athletes may experience increased strength and performance.
  • Luteal Phase (Day 15–28): Progesterone rises; some may experience PMS symptoms like fatigue, bloating, or mood changes, which can affect training and competition.​

    Tracking these phases can help athletes and coaches tailor training programs to align with individual hormonal fluctuations.

Girls experience their cycles differently—but when symptoms hit hard, performance, comfort and confidence can all take a knock.

Luckily, there are simple, proven ways to keep them feeling their best in and out of the pool.

  • Pain Relief: ibuprofen or naproxen are go-tos for cramps and inflammation.
  • Heat Therapy: A hot water bottle or heat pack on the lower tummy can relax muscles and ease pain.
  • Movement: Gentle, regular exercise gets endorphins flowing—natural pain relief in action.
  • Chill Out: Yoga, breathing exercises or simply taking a quiet moment can help calm pain made worse by stress.
  • Extra Support: Some girls find magnesium, fish oil or acupuncture helpful too (always best to chat with a health pro first).

🎥 Watch: Why Periods Shouldn’t Sideline Girls from Swimming

In this short video, Eltee Sydney founder Sarah Greenaway shares the real reason so many girls disappear from the pool during their period—and the simple solution helping them stay in the sport they love.

🗣️ Breaking the Silence: Encouraging Open Conversations

A significant barrier to addressing menstrual challenges is the lack of open dialogue. The Eltee Sydney survey found that 84% of girls prefer discussing period-related issues with their mothers, while 79% are reluctant to approach coaches.​

Creating an environment where athletes feel comfortable discussing menstrual health is essential. Education and awareness can help normalise these conversations, ensuring girls receive the support they need to thrive in their sport.​

By integrating these insights and resources, we aim to support young female swimmers in managing their menstrual health effectively, ensuring they remain confident and active in the pool.

  • We gathered survey responses and comments from 2302 Australian girls to find out why a staggering number of them quit sport during girlhood and what we can do to lower the dropout rate.

  • What we discovered should serve as a thundering call to action for parents, schools, clubs, and coaches alike to tackle the obstacles preventing potential-packed girls from rocking sports in girlhood through their teens and into adulthood. 

    DOWNLOAD FULL REPORT 
  • QR code to access survey results about drop out rate for girls after getting their period
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THE MENSTRUAL PHASES CHART

A quick guide to what girls might experience during each phase of their cycle.

Energy, mood, strength, cramps... it’s all here in one easy reference.

DOWNLOAD NOW

UNDERSWIM DEMO #1

💧 What’s UnderSwim—and Why It Matters

For girls who swim. And bleed.
UnderSwim is the invisible layer that sits under her regular swimsuit and locks in menstrual flow. Developed with elite input, tested by real swimmers, and endorsed by Swimming Australia as the Official Period-Safe Swim Underwear, UnderSwim is changing the game for young athletes navigating their cycle.

Key Benefits:

  • Absorbs the same as 3–4 tampons (15ml).
  • Seamless fit = invisible under swimwear.
  • Sealed layers keep water out and flow in (no soggy drag).
  • Sizes G10–12 to W18 = fits tweens, teens and women.
  • Designed for swim training, squads, school carnivals and water fun.

🔵 See product specs

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UNDERSWIM DEMO #2

SHOP SWIM

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❓ HANDY FAQs

Yes—many girls do. For longer meet days, we recommend our OG style (instead of G-Fit) for more absorbency and coverage.

Nope. It’s fully seamless and designed to disappear under full-bottom swimwear.

UnderSwim isn’t just absorbent—it’s engineered to perform in water.

That means a water resistant coating to avoid waterlogging and a sealed layer of lining to keep her flow locked in.

Yes they're absolutely allowed. In fact, UnderSwim is Swimming Australia’s official period-safe swimming underwear. It’s an approved option under their Inclusive Swimwear Policy.

Short answer? Nope.


Here’s what actually happens:

Water pressure can temporarily counteract the flow of blood while she’s submerged. So it might seem like her period “pauses” in the pool—but it’s still happening. It’s just less visible in that moment.



But the second she gets out?


That pressure disappears. Which is why many girls experience a sudden, heavier-feeling flow the minute they towel off or walk to the changerooms. Cue the panic—and the reason so many just skip swimming altogether.


That’s where UnderSwim helps.


It works like a safety net under her swimmers—silently absorbing flow in and out of the water. No second-guessing, no “what if it happens when I stand up?” anxiety.

Just reliable protection for her peace of mind.

💸 Club Pricing: UnderSwim

Making periods a non-issue at your club just got easier. We offer discounted rates for clubs, schools and squads purchasing UnderSwim in bulk.

Quantity Discount Price per Unit

20–49: 10% off $33.25 AUD

50–149: 15% off $30.40 AUD

150-299: 20% off $29.55 AUD

300+ Let’s chat (POA)

CONTACT US (EMAIL)

🟣 No GST – period underwear is tax-exempt in Australia
📦 Free shipping – we cover delivery on all club orders (AUS/ NZ).
🎁 Complementary marketing collateral – to help promote and educate.

SPREAD THE WORD!

CLUB INFO POSTER

Print it. Post it. Pin it to the changeroom door. Let’s keep girls in the water, every week of the month.

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SPREAD THE WORD!

CLUB INFO LETTER

We’ve drafted a ready-to-send letter you can share with parents, swimmers, or your wider club community. It outlines the problem, the stats, and how UnderSwim can help.

Download it, personalise it, and help make periods one less reason girls quit the pool.

ACCESS DRAFT LETTER