Heavy Periods (including perimenopause periods)

Heavy Periods (including perimenopause periods)

Heavy Periods Cheat Sheet (HMB) — with a Perimenopause/Menopause Lens

Action-first, checklist-style guidance: define it, rule out serious causes, reduce bleeding, protect iron + quality of life.

Last updated: Feb 19, 2026   Educational only   Not personal medical advice

Jump to: Key definitions Is this heavy? Urgent red flags Causes (PALM–COEIN) Peri/meno specifics What to ask for Options that reduce bleeding Supplements reality-check Do this next 20-second script Receipts

Bottom line: “Heavy” isn’t a badge of honor. It’s a symptom. The game is: (1) rule out serious causes, (2) reduce bleeding, (3) protect iron + quality of life. See NICE Guideline NG88 for a practical framework.

1) Key definitions (simple)

HMB = Heavy Menstrual Bleeding

Bleeding that is heavy enough to affect your life (sleep, work, leaving the house). It’s not just about “how many mL.” NICE NG88

AUB = Abnormal Uterine Bleeding

Any bleeding that’s abnormal for timing, regularity, duration, or amount. FIGO PALM–COEIN (Munro 2011)

Perimenopause

The transition years before menopause when hormones fluctuate and cycles often change. ACOG FAQ

Menopause

Defined as 12 months with no period. Bleeding after that is postmenopausal bleeding and needs evaluation. ACOG FAQ

2) “Is this heavy?” (HMB reality-check)

NICE emphasizes impact on quality of life as a key driver of assessment and treatment. NICE NG88

3) Urgent red flags (don’t wait)

For acute heavy bleeding, ACOG outlines urgent evaluation/management principles. ACOG Committee Opinion (2013)

4) Causes: Structural vs non-structural (what that means)

Structural means there’s a physical thing (often seen on ultrasound/hysteroscopy) contributing to bleeding.
Non-structural means bleeding is driven by function (hormones/ovulation), blood clotting, or medications.

Clinicians often use the FIGO classification called PALM–COEIN. Munro 2011 (PubMed)

Structural causes (PALM) — definitions
  • Polyp: a small growth in the uterine lining (often benign).
  • Adenomyosis: uterine-lining tissue grows into the uterine muscle → often heavy + painful periods.
  • Leiomyoma (fibroids): non-cancerous muscle growths in/around the uterus that can increase bleeding/pressure.
  • Malignancy/Hyperplasia: cancer or endometrial hyperplasia (overgrowth/thickening of the lining; can be pre-cancer).

Framework source: FIGO PALM–COEIN

Non-structural causes (COEIN) — definitions
  • Coagulopathy: a blood-clotting/bleeding disorder (example: von Willebrand disease).
  • Ovulatory dysfunction: irregular or absent ovulation (common in perimenopause).
  • Endometrial: lining-related bleeding without a visible structural cause.
  • Iatrogenic: caused by medications/devices (example: anticoagulants).
  • Not otherwise classified: rare/uncategorized causes.

Framework source: FIGO PALM–COEIN

5) Perimenopause + menopause specifics (what changes)

  • Perimenopause: cycles can become irregular because ovulation becomes less predictable — but structural causes (polyps/fibroids) also become more common with age. ACOG FAQ
  • After menopause: any bleeding needs evaluation (even spotting). ACOG FAQ

6) What to ask for (so your appointment actually moves the ball)

Bring this data (2 minutes, notes app)

ACOG overview: Heavy Menstrual Bleeding (FAQ)

Core tests (common)

  • CBC = Complete Blood Count (checks anemia)
  • Ferritin = iron storage marker (iron deficiency can exist before anemia)
  • Pregnancy test (if relevant)
  • Transvaginal ultrasound (often first-line imaging)

Workup frameworks: NICE NG88 | ACOG HMB FAQ

Important perimenopause note: when is an endometrial biopsy considered?

ACOG states endometrial sampling should be performed for AUB in patients 45 years and older, and in younger patients with risk factors or persistent/failed-treatment bleeding. ACOG Committee Opinion (2013)

NICE also discusses biopsy considerations in higher-risk bleeding patterns and risk contexts. NICE NG88 PDF

7) Options that actually reduce bleeding (pros/cons)

Acronyms: TXA = tranexamic acid. NSAID = non-steroidal anti-inflammatory drug (e.g., ibuprofen/naproxen). LNG-IUD / LNG-IUS = levonorgestrel-releasing intrauterine system.

Option 1: TXA (Tranexamic Acid) — “on-demand” prescription

Pros

  • Non-hormonal; used only on heavy days
  • Evidence-based for reducing heavy bleeding; often more effective than NSAIDs in comparisons

General dosing info: NHS | Mayo Clinic | StatPearls

Cons / watch-outs

  • Not for everyone (clot-risk context needs clinician review)
  • Requires prescription; best used with a plan (how many days, which days)

Overview: ACOG HMB FAQ

Option 2: NSAIDs (Ibuprofen / Naproxen) — useful if cramps are part of the problem

Pros

  • Helps period pain/cramps
  • Can reduce bleeding vs placebo (but usually less than TXA or LNG-IUD)

Evidence: Cochrane (2019)

Cons / watch-outs

  • Stomach/ulcer risk, kidney risk; not ideal for everyone
  • Less effective than TXA or LNG-IUD for heavy bleeding reduction

Summary: AAFP (2020)

For heavy bleeding, many protocols emphasize dosing during the heavy days. If you have GI/kidney issues, discuss before using.

Option 3: LNG-IUD / LNG-IUS (Levonorgestrel IUD) — long-term bleeding reduction

Pros

  • Often one of the most effective medical options for HMB
  • Long-acting; may also reduce cramps

Guideline: NICE NG88 PDF

Cons / watch-outs

  • Insertion is a procedure; early spotting/irregular bleeding can happen
  • Not for everyone depending on anatomy/preferences/medical context

Evidence summary: AAFP (2021)

Option 4: Hormonal pills/progestin options (cycle control, especially in perimenopause)

Pros

  • Can regulate erratic cycles and reduce bleeding for many people

Cons / watch-outs

  • Side effects vary; some health histories change which options are safe
  • Needs individualized prescribing

Overview: ACOG HMB FAQ

Option 5: If a structural cause is found (polyps, fibroids, adenomyosis)

If imaging suggests a structural cause, treatment may target the cause (e.g., polyp removal, fibroid-focused procedures). Approach depends on fertility goals, symptoms, and preferences. NICE NG88

8) Supplements & “natural” supports (what’s realistic)

Reality check: supplements are better supported for pain than for meaningfully reducing bleeding volume. If your goal is “less blood,” the strongest evidence usually points to TXA, LNG-IUD, and addressing structural causes. ACOG HMB FAQ

Omega-3 (fish oil)

  • Best evidence: may help period pain (dysmenorrhea). Not proven to reliably reduce heavy bleeding volume.
  • Watch-out: if you’re on blood thinners or have bleeding disorders, discuss first.

Dysmenorrhea evidence: Systematic review/meta-analysis (2022)

Magnesium

  • Best evidence: may help menstrual symptoms/pain in some trials. Not strong evidence it reduces heavy bleeding overall.
  • Watch-out: GI upset possible depending on form/dose.

Review: Clinical review (PDF)

Iron (if ferritin is low)

  • Heavy bleeding can cause iron deficiency; treat bleeding and iron stores.
  • Ask for ferritin (iron stores), not just hemoglobin.

ACOG: HMB FAQ | Review: Mansour et al. 2020 (PMC)

9) Your “do this next” plan

This week

Sampling criteria: ACOG (2013)

Pick your lane

Evidence-forward read: Dr. Jen Gunter — Treatment of HMB

10) A 20-second script for your appointment

SCRIPT “My periods are heavy enough to affect my quality of life. I’m concerned about iron deficiency. I’d like a plan to rule out structural causes (polyps/fibroids/adenomyosis) and to reduce bleeding. Can we check a CBC and ferritin, and discuss options like tranexamic acid, NSAIDs, or a levonorgestrel IUD based on what we find?”

Back to blog

Leave a comment