The bleeding is the visible cost. The hidden one is iron. Heavy periods are the leading cause of iron deficiency in women under fifty 1, and the fatigue, brain fog, hair shedding, and restless legs most women describe begin long before anaemia shows up.
Here's the part almost nobody is told: a standard blood count measures haemoglobin. Iron stores are ferritin, a separate test you must ask for by name. You can have a normal count and a ferritin of 8, deep in symptom territory 1. In teens with heavy bleeding, half were iron-deficient and only 40% of those were anaemic on the standard panel 2.
Most adult heavy bleeding traces to four causes 3: fibroids (benign growths, in one in four women of reproductive age 4), adenomyosis (lining growing into the muscle, around 20% and long underdiagnosed 5), polyps, and cycles where ovulation misfires. The first three show on ultrasound. A smaller share have an inherited bleeding disorder, usually von Willebrand disease; the tell is heavy bleeding since your very first period 6.
The whole action is one visit and one test you name yourself.
Treatment is a menu; most women never reach surgery. The hormonal IUD beat every oral option on quality of life and held at ten years 8 9. Tranexamic acid is a period-only pill that cuts blood loss about 40% 10. NSAIDs drop it 20 to 50% and handle cramps too 11. Whichever you start, refill iron alongside until ferritin recovers, which lags haemoglobin by months 1.
The arc runs on two clocks.
- Month one is the slow one. A hormonal IUD spends three to six months making bleeding worse before it settles.
- By month three: you forget it's period week. The double-up disappears; cancelled plans start holding.
- By month six: the iron catches up. The fatigue you'd called your personality lifts 1.
Untreated, a woman runs iron-deficient roughly a quarter of every month for thirty years. Closing that gap gives back a quarter of the years.
The fine print — when to skip it, and what people get wrong
"Bloodwork was normal, so my iron is fine": that's haemoglobin; deficiency without anaemia is at least twice as common 1. "The only fix is hysterectomy": it's the last line 7. "It'll ease with age": fibroids and adenomyosis often worsen through the forties 5.
The IUD gets pulled too early: the spotting phase lasts three to six months and only then does bleeding drop 7. Tranexamic acid taken once instead of scheduled does little. Iron stopped at "haemoglobin normal" relapses within cycles; ferritin lags 2.
Go faster than the next annual for bleeding between periods after 40, bleeding after sex, or any bleeding after menopause; soaking a pad hourly with lightheadedness is the emergency department 12. Skip tranexamic acid with a prior clot; skip the combined pill with migraine-with-aura or smoking after 35.
- 1Mansour D, Hofmann A, Gemzell-Danielsson K (2021). A review of clinical guidelines on the management of iron deficiency and iron-deficiency anemia in women with heavy menstrual bleeding. Advances in Therapy. link
- 2Powers JM, Stanek JR, Srivaths L, Haamid FW, O'Brien SH (2017). Hematologic considerations and management of adolescent girls with heavy menstrual bleeding and anemia in US children's hospitals. Journal of Pediatric and Adolescent Gynecology. link
- 3Munro MG, Critchley HOD, Broder MS, Fraser IS (2011). FIGO classification system (PALM-COEIN) for causes of abnormal uterine bleeding in nongravid women of reproductive age. International Journal of Gynecology & Obstetrics. link
- 4Stewart EA (2015). Clinical practice. Uterine fibroids. New England Journal of Medicine. link
- 5Vannuccini S, Petraglia F (2017). Recent advances in understanding and managing adenomyosis. F1000Research. link
- 6James AH (2009). Women and bleeding disorders. Haemophilia. link
- 7Bofill Rodriguez M, Lethaby A, Jordan V (2020). Progestogen-releasing intrauterine systems for heavy menstrual bleeding. Cochrane Database of Systematic Reviews. link
- 8Gupta J, Kai J, Middleton L, Pattison H, Gray R, Daniels J (2013). Levonorgestrel intrauterine system versus medical therapy for menorrhagia. New England Journal of Medicine. link
- 9Kai J, Middleton L, Daniels J, Pattison H, Tryposkiadis K, Gupta J (2022). Usual medical treatments or levonorgestrel-IUS for women with heavy menstrual bleeding: long-term randomised pragmatic trial in primary care. British Journal of General Practice. link
- 10Lukes AS, Moore KA, Muse KN, Gersten JK, Hecht BR, Edlund M, Richter HE, Eder SE, Attia GR, Patrick DL, Rubin A, Shangold GA (2010). Tranexamic acid treatment for heavy menstrual bleeding: a randomized controlled trial. Obstetrics & Gynecology. link
- 11Bofill Rodriguez M, Lethaby A, Farquhar C (2019). Non-steroidal anti-inflammatory drugs for heavy menstrual bleeding. Cochrane Database of Systematic Reviews. link
- 12NICE (2018). Heavy menstrual bleeding: assessment and management (NG88). link
დაკავშირებული სახელმძღვანელოში (9)
- — A hormonal IUD or pill is often the simplest fix — it can cut the bleeding sharply or stop periods altogether.
- — Documenting how heavy and how long is the first step that gets heavy bleeding taken seriously.
- — Heavy painful periods are the classic sign of adenomyosis hiding behind a 'normal' label.
- — If heavy bleeding comes with crippling pain, ask about endometriosis — it's commonly missed for years.
- — Heavy menstrual bleeding is a leading reason ferritin runs low in women, often before anaemia shows.
- — Heavy periods are the single most common reason iron stores run dry in menstruating adults — treat the bleeding, not just the iron.
- — In menstruating women, heavy periods are the leading cause of the iron-deficiency pattern this grid points to — check there first.
- — Cycles don't just lengthen in perimenopause — they can turn heavy, which is treatable, not just endured.
- — Heavy periods are the symptom most fibroids announce themselves with, and the one most worth not normalizing.