High-level visual guide for this topic.

Quick answer

There are lots of period myths around the world. Some come from old rules, culture, family habits, religion, school rumours, social media or people simply not having the right information. Myths can feel powerful, but facts can help you feel safer, calmer and more confident.

Why are there so many period myths?

Periods have been treated differently in different countries, cultures and communities. Some people grow up hearing that periods should be hidden, that period blood is dirty, or that people on their periods should avoid certain foods, activities or places. These ideas can be passed down for a long time, even when they are not medically true.

It is okay to care about your family, culture or community while also learning the facts about your body. If a rule or belief makes you feel ashamed, unsafe, left out, unable to go to school, or unable to manage your period hygienically, speak to a trusted adult, school nurse or healthcare professional.

Important: A myth is not always said to be cruel. Sometimes adults repeat what they were taught. But you still deserve accurate information, privacy, products, clean facilities and support.

Myths and facts

  • Myth 1: Periods are dirty or impure. — Fact: Periods are a normal body process. Period blood is blood and tissue from the uterus lining. It is not toxic, dirty or bad. Hygiene means changing your period product when needed, washing your hands, and washing normally.
  • Myth 2: You should hide your period completely. — Fact: Privacy is okay, but shame is not required. You can choose who you tell. But you should not have to suffer in silence, hide pain, miss help, or feel embarrassed for needing products.
  • Myth 3: Everyone will know you are on your period. — Fact: Usually, people cannot tell. Most period products are designed to be discreet. If you change products as needed and have what you need, most people will not know unless you choose to tell them.
  • Myth 4: People can smell your period. — Fact: Usually, no. Periods can have a natural scent, but it is usually not noticeable to others. Changing products regularly and washing normally can help you feel fresh.
  • Myth 5: You should not bath, shower or wash your hair on your period. — Fact: Bathing and showering are safe. Washing can help you feel clean and comfortable. Warm water may also help some people with cramps. You do not need scented products inside your vagina.
  • Myth 6: You cannot swim, play sport or be active on your period. — Fact: You can, if you feel okay and want to. Many people do sport, PE and swimming on their period. Movement can help some people feel better. Rest is also okay if you feel unwell, have strong pain, heavy bleeding or dizziness.
  • Myth 7: Every cycle is exactly 28 days and every period lasts exactly a week. — Fact: Cycles and periods vary. Many cycles are not exactly 28 days. Periods can be shorter or longer, especially when they first start. Tracking can help you learn your own pattern.
  • Myth 8: Period pain is just something you must put up with. — Fact: Mild cramps can happen, but severe pain deserves help. Period pain is common, but pain that stops school, sleep, walking, eating or normal activities should be taken seriously. Ask a trusted adult or healthcare professional for help.
  • Myth 9: Tampons or cups can get lost inside your body. — Fact: They cannot travel around your body. A tampon or cup sits in the vagina; it cannot move into the rest of your body. These products should still be used correctly, changed or emptied as directed, and should never be used if they hurt or make you uncomfortable.
  • Myth 10: Certain foods, cold drinks or hot water can magically stop or change your period. — Fact: Your flow is controlled by your body. Food and drink can affect how you feel, but they do not magically stop your period. Warmth may help cramps, but it does not make your body “bad” or “wrong”. If your bleeding is very heavy or changes a lot, ask for help.
  • Myth 11: Getting your period means you are suddenly grown up. — Fact: A period is one part of puberty. Starting periods means your body is changing. It does not mean you are ready for adult responsibilities. You are still allowed to be a kid or teen.
  • Myth 12: Only one type of person has periods. — Fact: Different people can have periods. Many girls and women have periods. Some trans boys, non-binary people and intersex people may also have periods. Everyone deserves respectful language, privacy and care.
  • Myth 13: You cannot get pregnant during your period. — Fact: For older teens, this is not something to rely on. If someone is sexually active, pregnancy can sometimes happen at unexpected times in the cycle. If this is relevant to you, speak to a trusted adult, doctor, nurse or sexual health service for safe, confidential advice.

How to check whether something is true

  • Ask where the information came from.
  • Check a reliable health source rather than relying only on social media or jokes.
  • Ask a trusted adult, school nurse, pharmacist, doctor or healthcare professional.
  • Be careful with advice that makes you feel ashamed, unsafe or unable to look after your body.
  • If you are not sure, it is okay to ask again.

What if a myth is part of my culture or family?

Different cultures and countries can have different beliefs about periods. Some beliefs are about privacy, some are about food, some are about religion, and some are about what people think is “clean” or “unclean”.

You do not have to be rude about someone’s beliefs to learn the facts. You can say: “I understand this is what some people believe, but I also want to know what is medically safe.” If a belief stops you from going to school, using period products, washing, eating, sleeping safely, joining normal life or getting medical help, it is important to talk to a trusted adult or healthcare professional.

Good news

Myths lose power when people learn the facts. The more you understand your body, the easier it can become to feel prepared, confident and less embarrassed.

Words you can use

  • “Is that really true?”
  • “Can we check a trusted source?”
  • “I want the facts, not the rumours.”
  • “I respect your view, but I need safe health information.”

Ask Luma

You could ask: “Can you help me check if this period myth is true?” or “How do I explain a period myth to someone kindly?” Source note for developers: This expanded article is informed by NHS guidance on periods, period pain, period products and missed/changed periods; NHS guidance on toxic shock syndrome safety; UNICEF menstrual health and hygiene framing around dignity, stigma, social support, knowledge, facilities and supplies; and additional period myth examples from Bloom U, Kotex, Initial Hygiene India and Free Periods Canada.