August means the start of something: fall sports tryouts, first practices, and for many teen athletes, the first time they have to manage their period during two-a-days, swim meets, or cross-country time trials. Period care for teenage athletes is one of the most practical topics I cover with families — and one of the most underserved by the internet.
So let's fix that.
Whether your daughter plays soccer, runs cross-country, swims, plays volleyball, or dances competitively, this guide covers what she actually needs to know: which products work best during sports, how to handle competition day, how to talk to coaches, and what to keep in her sports bag.
From The Period Academy
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See how it works →How Period Symptoms Affect Athletic Performance
First, a reality check: periods don't have to sideline teen athletes. But pretending period symptoms don't affect performance is also not helpful. Here's what's actually happening:
Cramps can reduce power output and concentration. They're not just uncomfortable — they're distracting in a way that affects split-second decisions, technique, and endurance.
Fatigue and low energy are most pronounced on days 1–2, especially if her flow is heavy and iron stores are getting a workout. Many athletes notice they feel slower or weaker on the first day or two of their period.
Bloating can affect range of motion and comfort in uniforms or tight athletic wear.
GI symptoms (nausea, loose stools) can be unpredictable and anxiety-inducing right before a competition. If this is an issue, see our post on period diarrhea in teens.
None of this means she can't compete or train during her period. It means she deserves a plan — and knowing what to expect makes a huge difference.
Choosing the Right Period Products for Sports
This is where period care for teenage athletes gets specific. Not every product is right for every sport.
Period Underwear
Period underwear has become enormously popular with teen athletes for good reason: there's nothing to insert, nothing to adjust, and nothing to worry about falling out or leaking during activity. The downside: most period underwear isn't designed for high-sweat activities, and in very hot conditions, they can feel uncomfortable.
Look for sport-specific period underwear (brands like Knix Sport or Thinx Sport are designed for this) if this is her preferred option. Regular period underwear held over a tampon or disc during heavy-flow days can also work well.
Tampons
For swimming and most contact sports, tampons remain the most practical option. A properly inserted tampon sits entirely inside the body, meaning it doesn't move during activity and has no external component to worry about.
For teens new to tampons, starting with the slimmest option and practicing at home — not right before the state meet — is the right call. See our period product guide for tweens for full details on helping her get comfortable with tampons.
Menstrual Cups and Discs
Menstrual cups and discs are increasingly popular with older teen athletes. They can be worn for up to 12 hours (depending on flow), work well for swimming, and eliminate the need to change during a long meet or tournament. They do have a learning curve, so this isn't a "try it for the first time on game day" situation.
Pads During Sports
Standard pads and sports aren't a great combination — they shift, they bunch, and they can leak during running or jumping. If a pad is the only option available, using the shortest/thinnest option with snug athletic shorts or compression shorts over them reduces movement. But for most sports, another product will serve her better.
The Competition Day Period Kit
Every teen athlete who menstruates should have a small period kit in her sports bag. Here's what to include:
Knowing it's there means she's not spending mental energy worrying. And mental energy before competition matters.
For the school version of this kit, see our post on what to keep in your school locker for your period.
Training Through Your Cycle: What the Research Says
Teen athletes don't need to become cycle-syncing devotees — but a basic understanding of how hormones affect energy and recovery is genuinely useful.
Days 1–5 (menstruation): Hormones are at their lowest. Strength and endurance may feel reduced. This is the time to be kind with recovery, keep iron-rich foods in the mix, and use NSAIDs proactively rather than reactively if cramps are a factor.
Days 6–14 (follicular phase): Estrogen rises, energy often improves, and this is typically when athletes feel strongest. Great time for intense training.
Days 15–28 (luteal phase): Progesterone rises after ovulation. Some athletes notice more fatigue, more bloating, and slower perceived effort in this phase. Training doesn't need to stop — but listening to her body is reasonable.
This is background knowledge, not a rigid prescription. Many teen athletes perform at their best at any point in their cycle. The goal is awareness, not anxiety.
How to Talk to Her Coach
Most coaches want to know if something is affecting an athlete's performance — and most coaches, when approached matter-of-factly, handle the conversation well.
Your daughter doesn't need to overshare. A simple, direct script: "My period started today and I'm managing cramps. I'll be at practice / I need to sit out warm-ups. I have my ibuprofen." That's enough. No apology needed.
If a coach responds poorly to reasonable, brief communication about a health matter, that's worth noting — and worth a conversation between you and the coach or school administration.
For your daughter: you are allowed to tell your coach you're managing a health matter without providing details. You are allowed to ask to use the bathroom between drills. You are not required to white-knuckle through significant pain in silence.
When Period Symptoms Are Affecting Her Season
If period symptoms are consistently severe enough to affect multiple practices or competitions per cycle, that's a signal to see her pediatrician or gynecologist. Options exist — from adjusted NSAID protocols to hormonal options that can reduce flow and symptoms — and an athlete doesn't have to just accept that several days per month are going to be significantly harder than they need to be.
Heavy periods in teen athletes can also affect iron stores over time, which affects endurance and recovery. If she's unusually fatigued for a day or two after her period or feels winded more easily than usual, a simple blood panel can check her iron levels.
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Also helpful: our post on exercising during your period for teens.
Nurse Al
Board Certified CNM, WHNP
Nurse Al is a certified nurse-midwife and the founder of The Period Academy. She has helped over 1,000 families navigate the period conversation with confidence — and built a video so good, kids ask to watch it again.
The period talk doesn't have to be awkward.
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