Heavy Periods: How Much Bleeding Is Too Much During Your Period?

Heavy Periods: How Much Bleeding Is Too Much During Your Period?

Heavy Periods: How Much Bleeding Is Too Much During Your Period?

Is your heavy period normal?

When it comes to getting your period, establishing what’s “normal” is a fine art: every human body is as unique as a snowflake, and your periods are no exception. Even your individual cycles can vary in length and volume, depending on the month. So what causes heavy bleeding on your period, and how much is too much?

Abnormally Heavy Periods

A period usually lasts about 3-5 days, and produces a total of 30-40 ml (6-8 teaspoons) of menstrual blood. Menorrhagia, or heavy menstrual bleeding, is medically defined as passing more than 80ml of menses over the course of a period.

These numbers are probably meaningless to you, unless you use a menstrual cup in which you can see the actual volume; even then, you’re probably not sitting on the toilet measuring out your blood like a goth scientist. More signs of menorrhagia include:

  • Large blood clots
  • Bleeding through tampons in less than an hour
  • Needing to double up on pads and tampons to prevent leaks
  • Bleeding for longer than a week
  • You’re bleeding so much that you feel like you can’t manage it

Heavy Period Causes

Heavy periods are a common medical complaint, but in more than half of cases, a root cause is not clear. There are many conditions that can present themselves in the form of heavy periods with cramps or a heavy period without cramps. Heavy period bleeding can be a sign of:

  • Estrogen and progesterone imbalances: these hormonal imbalances can cause buildup in the uterine lining. This will shed during a period, causing a heavier flow. Common conditions that could be linked with hormone imbalance include polycystic ovary syndrome, insulin resistance, pre-diabetes, thyroid illnesses, and obesity.
  • Endometriosis: when uterine tissue grows outside of the uterus and into other parts of the pelvic area, it can cause people with endometriosis to experience very heavy periods and cramping, and possibly clots in their period blood.
  • Polyps/ Fibroids: Polyps are overgrowths of the endometrial tissue that lines the uterus and can be malignant, while uterine fibroids are (non-cancerous) growths in the actual muscle and fiber wall of the uterus. Some people are at greater risk for fibroids and polyps, so tell your doctor if your heavy bleeding comes with a family history of fibroids, polyps, or other uterine growths.
  • Adenomyosis: when glands from the endometrium become embedded in the walls of the uterus.
  • IUDs: both the hormonal and non-hormonal form of this birth control device has a well-known side effect of heavy period bleeding. Heavy bleeding with an IUD is especially common in the first few months after insertion.
  • Pregnancy: pregnancy occasionally goes unnoticed before ending in a miscarriage, which can be mistaken for a heavier-than-normal period.
  • Cancers of the uterus andcervix: these can cause heavy menstrual bleeding. But before you start panicking that your heavy bleeding = cancer, there are many other symptoms that are more reliable for a cancer diagnosis. Make sure you’re getting regular pap smears to ensure a healthy cervix.
  • Postpartum bleeding: heavy bleeding after childbirth is common but it is not the same as getting a period. Postpartum bleeding can be dangerous if excessive and is a sign of a hemorrhage.
  • Other bleeding disorders: various diseases can impair the body's ability to coagulate blood, resulting in abnormal periods. People with Von Willebrand Disease, for example, are missing a blood-clotting protein and may have heavy period bleeding.
  • Medications: many medications, including birth control, often can contribute to hormone imbalances and heavy bleeding.
  • Beginning your period: Teenagers are more prone to heavy flow and irregular periods in the year following their first cycle.
  • Perimenopause: the years leading up to menopause (for some that can last up to 10-15 years) is marked by heavy bleeding for many people.

If you have abnormal bleeding, your doctor or health practitioner may search for the cause with blood tests, a pelvic exam, or a hysteroscopy.

Managing Heavy Periods

Making changes in your lifestyle can make heavy bleeding far more manageable. The following adjustments may help make your period more comfortable:

  • Nutrition: If heavy bleeding is making you anemic, certain foods, such as dark leafy vegetables, meat, fish, and tofu, can help restore healthy iron levels.
  • Exercise: Regular exercise can help shorten your periods, reduce cramps, and lighten your flow by increasing your metabolism. It can also be a serious mood lift and stress-reliever. Don’t sweat how you sweat: if the gym isn’t your place, there are lots of other ways to get moving. Join an kickball league, sneak into the neighbor's yard to take a dip in their pool, or go out to disco night at a roller-rink: voila, you’re exercising!
  • Medication for heavy bleeding: hormonal forms of birth control such as the pill or a hormonal IUD can help decrease bleeding and duration. NSAIDs (such as Advil) can also reduce bleeding and cramps.They can also increase bleeding, so ask your doctor if medication options are right for you.
  • Menstrual products that help: If you are filling your pads and tampons faster than you can change them, consider switching to a menstrual product that can handle more blood. Menstrual discs and menstrual cups both hold more fluid than tampons and pads- up to five times as much fluid- and can stay in up to 12 hours. Discs and cups can also reduce the cramping that goes with heavy bleeding, and they catch heavy period blood clots more effectively.

Go to thy Doctor

We love Googling “do I have cancer” at 2 AM just as much as the next person, but going to the doctor is truly your best bet for figuring out what, if any, implications there are with your heavy bleeding. While menorrhagia is not per se a sign of an underlying condition, regular checkups with your care practitioner will keep an eye on anything that may be going on in your body or life. Make sure your doctor knows if you have any other conditions or symptoms with your heavy bleeding, and your family history of disease.

  • Your period
  • Your lifestyle
  • Your concerns

Typically, how many days is your period?

How heavy is your flow on your heaviest days?

When did your last period start?

How many weeks do you typically have between periods?

What period product do you use most frequently?

How disruptive can your period be to your life?

What bothers you most about having your period?

What is the one thing you wish you could change about your period?

  • < 2 Days
  • 3 Days
  • 4 Days
  • 5 Days
  • 6 Days
  • 7 Days
  • > 8 Days
LIGHT (1-2 tampons/day)
MEDIUM (3-4 tampons/day)
HEAVY (4-5 tampons/day)
  • < 2 Weeks
  • 3 Weeks
  • 4 Weeks
  • 5 Weeks
  • 6 Weeks
  • 7 Weeks
  • > 8 Weeks
Tampon Tampons
Pad Pads
Menstrual Cup Cup
Menstrual Disc Discs
Period Panties Period Panties
Ellipses Others
Can’t get out of bed
Can’t do certain activities
I mostly feel uncomfortable
Just like any other day
I’m constantly running to the bathroom
I can’t sleep through the night
My work out routine is thrown off
I can’t have sex
I feel uncomfortable
Less cramping
Less odor
Fewer leaks
No risk of TSS
Less waste
If you’re not sure, choose MEDIUM.

All done!

What email would you like your results sent to?

By clicking "See My Results" you agree to
receive email from The Flex Company.

Here is our pick for you!
Flex Box
plan type
Light plan $6.50
4 Discs per cycle per period
8 Discs every 2 months
Light Flow Starter Kit
Includes 8 discs + our Getting Started Guide

We will automatically ship 8 discs for $13 every two months starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Flex Box
plan type
Medium plan $12
8 Discs per cycle per period
16 Discs every 2 months
Medium Flow Starter Kit
Includes 8 discs + our Getting Started Guide

We will automatically ship 16 discs for $24 every one month starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Flex Box
plan type
Heavy plan $14
Discs per cycle per period
24 Discs every 2 months
Heavy Flow Starter Kit
Includes 12 discs + our Getting Started Guide

We will automatically ship 24 discs for $28 every one month starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Try FLEX with some liners at first.

Sometimes you just feel better with a little backup. FLEX plus liners would be a great combination for you while you transition to FLEX to help guard against leaks until you get the hang of positioning FLEX.

Not ready for membership? Try just one FLEX.

Here is our pick for you

Flexcup Discovery Kit
Flexcup Discovery Kit


$32.99 71+ Reviews

1 Menstrual Cup

  • + 1 Carrying Pouch
  • + 2 free Menstrual Discs

The FLEX Cup comes with 2 free FLEX Discs for you to try so that you can experience two new and innovative period products for no extra charge.

Free US Shipping

No Image