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10 Crazy Facts About Your Period You Always Wanted to Know

author image August McLaughlin
August McLaughlin is a health and sexuality writer with more than 10 years of experience as a nutritionist. Her work is featured in the Huffington Post, DAME Magazine, The Good Men Project and more. She specializes in eating disorders and loves connecting with readers and writers via her blog and social media.

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10 Crazy Facts About Your Period You Always Wanted to Know
Three young women hanging out. Women spend, on average, more than 2,000 days of their lives menstruating.

If you have a uterus, you will spend (on average) more than 2,000 days of your life menstruating. While periods have been around since the dawn of time, menstruation has been considered taboo throughout history. Menstrual stigma persists around the world, but thanks to new innovations and heightened awareness, the (crimson) tide is beginning to turn. Read on to learn more about the history of all things menstrual and recent innovations that are changing the course of period history for the better.

They Were Once Considered Lunar Anomalies
Phases of the moon. Menstruation was considered a lunar anomaly in ancient times.


In ancient and medieval times, menstruation was considered bleeding without injury that corresponded with changes in the moon. While this may sound like mythical musing, environmental cues play a well-documented role in regulating menstruation, according to gynecologist Dr. Christiane Northrup. “Many women find that they are at peak expression in the outer world during the first half of their cycles,” she writes, “which coincides with the waxing of the moon until it’s full, until ovulation.” While research is limited, one small Scandinavian study published in the 1980s does support the lunar-menstrual connection.

Related: How the Moon Affects Your Feminine Body

They Helped Early Humans Track Time
The Mayan calendar. Ancient civilizations used menstruation to track time.


Long before the advent of watches, planners and smartphone apps, periods may have helped ancient civilizations track the passage of time — all thanks to a tool most likely created by a woman. “The earliest attempts at calendars are thought by some archeologists to be lunar/menstrual calendars,” said Susan Harper, a feminist scholar and anthropologist in Dallas. Ancient bones with tally marks, including Lebombo and Ishango bones, seem to track the 28-day lunar cycle, she added.

Related: The Lebombo Bone and Ishango Bone: World’s Oldest Math Tools

Period Literally Means ‘That Time’ of the Month
A woman looks through the dictionary. The etymology of menstruation has a long history.


The word “menstruation” dates back to the late 1600s and derives from the Latin word “menstruus,” which means “monthly.” Over time, the monthly shedding of the uterine wall became known as “menstrual periods” (i.e., the the period of time in which Aunt Flo visits). While the term is still used, “menstrual” is often dropped, leaving simply “periods.” Fun word-nerd fact: The word “tampon” derives from “tampion,” the medieval French word for a plug or stopper.

Menstrual Shame Is a Huge Problem
Girls in other parts of the world often face bullying around menstruation.


Periods have been cloaked in shame for centuries. While there are exceptions — some cultures viewed menstruation as sacred — menstruating women were typically considered cursed in ancient times. Men who recorded history often omitted menstruation altogether, as though it had never happened. Even today, countless girls in countries like India and Uganda drop out of school due to bullying around menstruation or a lack of sanitary products or bathrooms.

Related: A Bleeding Shame: Why Is Menstruation Still Holding Girls Back?

Bandages Became (Secretive) Pads
Sanitary pads were first made from wood pulp.


The first menstrual products likely consisted of sticks wrapped in foliage or wads of cloth. Finally, in 1888 Johnson & Johnson developed the first commercial disposable pads, called Lister’s Towels. Embarrassment around purchasing the pads prompted the company to shift to more discreet packaging and the less telling name, Nupak. Around this time nurses began creating highly absorbent pads out of wood pulp bandages. Later on, Kotex used the same material to create their first pads.

Related: The Product That Dared Not Speak Its Name

Thank a Ballerina for the Modern Tampon
Modern tampons were invented by Dr. Earle Cleveland, who was inspired by his wife, a ballerina.


Like pads, tampons haven’t changed much over the years. Devices consisting of absorbent material with a string attached were documented in 18th century Europe. A study published in 1879 by the British Medical Journal included “Dr. Aveling’s Vaginal Tampon-Tube” as a new innovation. Today’s commercial tampons first entered the market in 1929. Creator Dr. Earle Cleveland was inspired by his ballerina wife, who had struggled to fit bulky pads in her leotards.

Related: The Tampon: A History

Women Are Creating Alternatives
A menstrual cup is an alternative to tampons or pads.


It may have taken centuries, but numerous female-led companies now create and sell alternatives to traditional feminine-hygiene products. Absorbent underwear (known as “period panties”) and vaginally insertable menstrual cups allow wearers to bypass pads and tampons for up to 12 hours. “Menstrual cups are very effective and designed with a focus on minimizing consumption and benefiting our environmental-waste burden,” said Dr. Barb DePree, a gynecologist in Holland, Michigan. You simply fold and insert the cup into your vagina, then empty and rinse it twice or more per day.

Related: Menstrual Cups Are a Feminist Issue

Natural Pads and Tampons May Be Beneficial
A cotton plant. Cotton is a natural alternative to rayon-based tampons.


Most feminine-hygiene products consist of of cotton, rayon and synthetic fibers, but U.S. makers aren’t required to disclose specific ingredients. If you want to avoid potentially risky chemicals, you can now use natural alternatives. The vagina is permeable and absorbs chemicals, said DePree, so the appeal of natural, organic or chemical-free products makes sense. While information is lacking on any risks and benefits of traditional and natural alternatives, she feels natural options can benefit anyone with known sensitivities. “For decades women have been using tampons with no obvious widespread detriment, to our present day knowledge,” she said. “We need clinical trials to say for certain there are health risks [or] benefits.”

Related: What’s In Your Pad or Tampon?

Hormonal Interventions Can Help
Birth-control options.


The modern menstruator can not only access a broader range of hygiene products, but also effective ways to manage bothersome symptoms. “The hormonal interventions we can now offer to patients with heavy, irregular or painful periods are extremely beneficial,” said Dr. Sheila Loanzon, a gynecologist in San Jose, California. These include estrogen- and progesterone-based methods, such as oral pills, transdermal patches and intervaginal rings, progesterone-only pills and intrauterine devices (IUDs). “All of these options have risks and benefits, depending on what the patient is looking for,” she added. Your ability to properly take a medication, your comfort with estrogen use and your family medical history can help determine your best option.

Some Men Menstruate Too
A unisex bathroom sign. Some men also menstruate.


Spend an hour flipping through magazines or TV channels and you’ll likely see menstrual products advertised. While the ads vary in specifics, they typically share one trait: They all feature women. Females aren’t the only ones who menstruate, though. Many trans men do too. “I understand why companies do this,” said TJ, a transgender man in Los Angeles. “Our culture is just starting to come around to accepting trans people,” he said. “That said, I’d love to see it change. Having periods doesn’t make me less of a man.” When trans people feel included and respected, they tend to be less prone to complications of bullying and discrimination, such as depression and homelessness.

Related: 8 Critical Facts About the State of Transgender America​

Knowledge Is Power
A group of teenagers. Teaching kids about menstruation removes the stigma.


Knowledge is power when it comes to menstruation. If you’re a parent, consider talking to your child about her period before puberty. If you carry some amount of menstrual shame or anxiety about discussing it yourself, aim to minimize it. Seeing menstruation for what it is — a natural process worthy of respect — benefits everyone. What most surprised you about the history of periods? What’s your favorite new product? Let us know in the comments!

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