Why do periods stop in the pool?

That’s a really interesting one 🌊 — a lot of people notice that their period seems to “stop” or slow down in water, especially in a swimming pool. Here’s what actually happens:

✅ The Science Behind It

  1. Water Pressure Effect

    • When you’re in a pool, the water creates external pressure on your body.

    • This pressure can temporarily counteract the flow of menstrual blood, making it seem like your period has stopped.

  2. Gravity Plays a Role

    • Out of water, gravity helps blood flow out naturally.

    • In water, gravity isn’t pulling in the same way, so the flow slows down.

  3. It Doesn’t Actually Stop

    • Your period doesn’t “pause” completely — it’s just reduced.

    • Once you get out of the water and pressure is gone, the flow resumes normally.

🏊 Other Things to Know

  • Swimming with a pad isn’t practical (it won’t absorb properly in water).

  • Tampons or menstrual cups are best if you plan to swim.

  • Chlorine in pool water does not stop your period — only water pressure does.

✨ Bottom line:
Your period doesn’t really stop in the pool — the water pressure just slows it down temporarily. The moment you step out, it will continue as usual.

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