Does water stop your period while you're in water?

No, your period does not stop in the water - this is a myth.

Your uterus does not know you're in the water and nor does it care, it will carry on shedding just as it would when you're not in the water as menstruation is controlled by hormones not water. The idea that water pressure stops menstruation is just as nonsensical, this isn't how water pressure works.

Experiment: get into a shallow bath on your period you can see this for yourself, when your flow is lighter what little blood leaves your body may be diluted in the water so less noticeable, however heavier flow will be more noticeable and if you pass mucus or uterine tissue it will be obvious.

Upon getting out of the water the blood will be diluted with the water so it will potentially run down your legs for everyone to see and getting on the side of the pool, again more noticeable when heavy.

If you want to swim on your period use one of the following:

  • Tampons
  • Soft tampons
  • Menstrual sponges
  • Menstrual cups
  • Diaphragms
  • Softcups

Menstrual cups are the best option as they are far safer and more hygienic than tampons - thus no risks of vaginal infections, increased cramps, or Toxic Shock Syndrome - this means that they can be worn with light flow so you don't have to sit out like you would with tampons, and they can be worn for up to 12 hours so no needed to get out the water to change every few hours. With menstrual cups nothing shows outside the water, they don't absorb water, and they don't leak like other options.