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Heavy Periods

a picture of a woman sitting doubled over with her period because it is so heavy wondering how to treat heavy periods
Heavy periods dragging you down?

Heavy Periods or Heavy Menstrual Bleeding

Menorrhagia is either excessively long or excessively heavy periods.  It’s a common women’s health problem in teenagers, in women with uterine fibroids, and in women at perimenopause. Being common does not mean that those bad periods are normal or healthy.  Heavy periods often lead to iron deficiency anemia.  Correcting the cause of heavy bleeding is vital to maintaining healthy iron levels.

What is a normal menstrual flow?

Typically 1-2 days will be heavy, but not excessively so.  Then there will be a couple of days of medium flow, followed by 1-2 days of light flow.

What causes heavy periods (menorrhagia)?

These factors cause heavy periods:

Hormone imbalance

The hormone imbalance that causes heavy periods is typically higher estrogen compared to progesterone (or other hormones like DHEAs and testosterone).  These hormones balance estrogen and keep it in check.  This is also known as estrogen dominance.  High estrogen or imbalanced levels can cause extremely heavy bleeding, bad cramps, and thick clots in the menstrual flow.

Uterine fibroids

Fibroids are benign growths in your uterus.  Inflammation and/or hormone imbalance like estrogen dominance cause or contribute to uterine fibroids.  Fibroids cause heavy bleeding and clots.


As your ovaries wind down at perimenopause, they produce less progesterone. Estrogen levels remain higher longer.  Without progesterone to balance estrogen, you make a thick uterine lining.  When you shed this lining during your period, it makes for a lot of bleeding.  Sometimes there is also light bleeding or spotting between periods and irregular cycles at perimenopause.

Uterine polyps

Polyps are also growths in your uterus.  They are more concerning than fibroids as they can lead to more serious problems.  Estrogen dominance is a major factor in the development of polyps.

Endometrial hyperplasia

Endometrial hyperplasia is an abnormal thickening of the lining of your uterus. It is also associated with estrogen dominance.

Early Miscarriage

Early pregnancy loss (before you realize you are pregnant), may manifest as heavy bleeding.  This type of heavy bleeding would occur as a “one-off” thing rather than a regular monthly occurrence.

Symptoms of heavy periods

Women with really heavy periods experience additional symptoms like:

  1. Weakness or tiredness
  2. Clots in their menstrual flow
  3. Iron deficiency anemia
  4. Infertility (due to endometriosis, PCOS, estrogen dominance, polyps or fibroids)

What are the tests for heavy periods?


Estradiol is one particular form of estrogen. There are 3 main forms: estriol, estrone, and estradiol. Measuring estradiol alone provides an incomplete picture of estrogen level and activity.  But, this test provides some basic information.   Your peak estradiol is best measured around ovulation.  Ovulation occurs around days 14-15 of your cycle, assuming that you have a normal menstrual cycle.  A DUTCH test provides more detailed hormonal information but is costly to do and not covered by OHIP.

SHBG or Sex Hormone Binding Globulin

This is a protein that binds to estrogen and decreases its activity.  Low SHBG means higher estrogen activity.  Higher estrogen activity means a thicker lining builds up and so more blood is lost with your period.

Testosterone, DHEAs and progesterone

These compete for estrogen receptors and moderate estrogen activity.  Lower levels mean increased estrogen activity.  Progesterone is best measured on day 21 of a 28-day menstrual cycle. Day 21 should be a week after you ovulate.  The others are measured at any point in the cycle.

Pelvic and transvaginal ultrasound

A pelvic and transvaginal ultrasound assesses ovarian cystsuterine fibroids, uterine polyps, and endometrial hyperplasia.  These are all symptoms of estrogen dominance. It is a relative imbalance between estrogen and progesterone.  Endometrial hyperplasia is a thickening of the uterine lining.  It is a common occurrence during perimenopause but can indicate a higher risk for more serious problems.  Your family physician should monitor endometrial hyperplasia and advise you accordingly.

Natural treatment for heavy periods

  1. Support healthy estrogen breakdown through the liver.  The nutrients your liver needs to properly process estrogen include vitamin B6, B12, L-5MTHF, glucarate, indole-3-carbinol and magnesium.  Supplying these helps in some cases of heavy periods.
  2. Balance hormone production through diet and nutritional support.  Certain dietary constituents cause excessive estrogen production.  Following our healthy diet recommendations, helps reduce excess production.
  3. Support healthy progesterone production. Making progesterone requires vitamin B6 and magnesium.  Stress decreases your progesterone level.  I use herbs to improve progesterone production.
  4. Research shows that treatment with vitamin B1 can help reduce heavy periods in women with a copper IUD.
  5. Vitamin A therapy helps relieve heavy periods by supporting normal hormone production.

For help with this or any other health problem, book an appointment here or call the office for more information at 416-481-0222.

Authored by Dr. Pamela Frank, BSc(Hons), ND

Picture of Toronto Naturopath Doctor Dr. Pamela Frank, Best Naturopath in Toronto many times over
Dr. Pamela Frank, BSc(Hons), Naturopathic Doctor

Dr. Pamela has practiced as a naturopathic doctor in Toronto since 1999. She has received numerous “Best Naturopath in Toronto” awards. She is registered with the College of Naturopaths of Ontario.

Dr. Pamela Frank uses a natural treatment approach that may include acupuncture, herbal medicine, nutrition, diet, vitamins, supplements, and other natural remedies to restore balance and provide long-term resolution to almost any health problem.

Heavy Periods and Natural Treatment Research

Kashefi F, et al. The effect of ginger (Zingiber officinale) on heavy menstrual bleeding: a placebo-controlled, randomized clinical trial. Phytother Res. 2015; 29(1):114-9.

Lithgow DM, et al.  Vitamin A in the treatment of menorrhagia. S Afr Med J. 1977 Feb 12;51(7):191-3.

Jafari A, et al. The effect of vitamin B1 on bleeding and spotting in women using an intrauterine device: a double-blind randomized controlled trial. Eur J Contracept Reprod Health Care. 2014 Jun;19(3):180-6. doi: 10.3109/13625187.2014.893425.

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