Heavy menstrual bleeding, also called menorrhagia, means soaking through a pad or tampon every hour for several hours in a row, bleeding longer than seven days, or passing clots the size of a quarter or larger, per the American College of Obstetricians and Gynecologists. It is common, and it is treatable. The most frequent driver in Black women is uterine fibroids, and the most common consequence is iron-deficiency anemia.
What counts as heavy bleeding
Clinically, heavy menstrual bleeding is more than 80 milliliters of blood loss per cycle, but you do not measure that at home. The practical signs ACOG lists are soaking through one or more pads or tampons every hour for several hours, needing to double up on protection, waking at night to change protection, bleeding for more than seven days, and passing clots a quarter-inch wide or larger. If your period dictates what you wear, where you go, or whether you can work, it is heavy, regardless of the number.
What causes it, and why fibroids lead the list
Several conditions cause heavy bleeding: uterine fibroids, adenomyosis (when the uterine lining grows into the muscle wall), thyroid disease, and inherited bleeding disorders such as von Willebrand disease. For Black women, fibroids are the dominant cause. Ultrasound evidence shows more than 80% of African American women and about 70% of white women develop fibroids by age 50, and Black women carry a roughly threefold higher age-adjusted incidence rate, according to a public-health review in the Journal of Health Care for the Poor and Underserved. Black women also tend to be diagnosed at younger ages, have more and larger fibroids, and report more severe symptoms.
Bleeding disorders are under-recognized. Von Willebrand disease, the most common inherited bleeding disorder, affects up to 1% of the population, and heavy menstrual bleeding is the most common symptom in women who have it, according to the CDC. Women with a bleeding disorder wait an average of 16 years from their first symptom to diagnosis, per the CDC. If your heavy periods started at your first cycle, or you also bruise easily or bleed heavily after dental work or childbirth, ask to be screened. We cover the fibroid story in depth in our guide to fibroids in Black women.
The anemia you may not feel coming
Heavy menstrual bleeding is the most common cause of iron-deficiency anemia in girls and women of reproductive age, per a patient-survey study in the Journal of Blood Medicine. Every milliliter of blood lost takes iron with it, and the loss accumulates cycle after cycle. Symptoms build slowly: fatigue, shortness of breath on stairs, headaches, brittle nails, cold hands, and sometimes a craving to chew ice. Many women normalize exhaustion for years before anyone checks a ferritin level.
The delays are real. In that same survey, women with both heavy bleeding and iron-deficiency anemia waited a mean of 2.9 years from symptom onset to an anemia diagnosis, and 4.4 years on average before receiving intravenous iron. A simple blood test, complete blood count plus serum ferritin, catches the problem early. If you have heavy periods, ask for both. Our explainer on iron-deficiency anemia in Black women walks through diagnosis and treatment.
The treatment ladder, not just hysterectomy
Heavy bleeding has a full range of treatments, and most women can avoid surgery. The disparity worth naming: Black women are 2 to 3 times more likely to undergo a hysterectomy for fibroids than other groups, often during their childbearing years, per the public-health review cited above. A hysterectomy ends your periods, but it ends fertility too, and it is rarely the only option. Ask about these first.
Tranexamic acid. A non-hormonal pill taken only during your period. In a randomized controlled trial published in Obstetrics & Gynecology, women on tranexamic acid cut menstrual blood loss by about 40%, far more than placebo (PubMed). It is a good fit if you do not want hormones or a device.
Hormonal options. The levonorgestrel-releasing IUD reduces menstrual blood loss by roughly 71% within six months and up to 94% by one year, per the clinical trial protocol for the 52 mg system. Combined birth control pills and oral progestins also lighten periods. These treat the bleeding without removing anything.
Uterus-sparing procedures. When fibroids are the cause and medication is not enough, uterine artery embolization and myomectomy both preserve the uterus. In embolization, an interventional radiologist injects tiny particles to cut off the fibroids' blood supply so they shrink. ACOG and the Society of Interventional Radiology consider it safe and effective: about 3 in 4 women get symptom relief, though roughly 1 in 5 later need another procedure, per ACOG. Myomectomy surgically removes the fibroids while keeping the uterus, which matters if you want to carry a pregnancy. In the FEMME randomized trial in the New England Journal of Medicine, women who had myomectomy reported better fibroid-related quality of life at two years than those who had embolization (PubMed).
How to get care that takes you seriously
Walk in with specifics. Track your cycle for two months: how many pads or tampons per day, how often you double up, clot size, days of bleeding, and any fatigue. Ask directly for a complete blood count and a serum ferritin, and ask which treatments short of hysterectomy fit your situation and your plans for children. If a provider jumps to hysterectomy without offering tranexamic acid, a hormonal IUD, embolization, or myomectomy, get a second opinion. You can find a Black OB-GYN in our directory who understands this history and will treat your fertility as worth protecting.
Frequently asked questions
How do I know if my period is too heavy? ▼
You have heavy menstrual bleeding if you soak through a pad or tampon every hour for several hours, need to double up on protection, wake at night to change, bleed for more than seven days, or pass clots the size of a quarter or larger, per ACOG. If your period limits your activities, it counts as heavy.
Why are fibroids so much more common in Black women? ▼
More than 80% of African American women develop fibroids by age 50, versus about 70% of white women, and Black women have a roughly threefold higher incidence rate, often at younger ages and with more severe symptoms. Researchers are still studying the biological, genetic, and environmental reasons, but the disparity is well documented.
Can heavy periods cause anemia? ▼
Yes. Heavy menstrual bleeding is the most common cause of iron-deficiency anemia in reproductive-age women. Each period drains iron, and the loss adds up. Ask your provider for a complete blood count and a serum ferritin test to check.
Do I need a hysterectomy for heavy bleeding from fibroids? ▼
Usually not. Options include tranexamic acid, a hormonal IUD, and uterus-sparing procedures such as uterine artery embolization and myomectomy. Black women are 2 to 3 times more likely to receive a hysterectomy for fibroids, so ask about these alternatives first, especially if you may want children.
What does tranexamic acid do? ▼
Tranexamic acid is a non-hormonal pill taken only during your period that helps blood clot and reduces menstrual blood loss by about 40% in clinical trials. It is an option for women who prefer not to use hormones or a device.