Heavy Periods — When to See a Doctor (and When It Is Just a Phase)

Heavy periods are common but rarely investigated. This page explains the difference between heavy-but-normal periods and pathological heavy menstrual bleeding (HMB), when to see a doctor, and what evaluation to expect.

1. What counts as heavy

Soaking through a pad or tampon every 1–2 hours, passing clots larger than a 2-rupee coin, periods lasting more than 7 days, or bleeding that limits work, school or daily activity. Self-report of significant impact is valid, formal quantification is rarely needed clinically.

2. When heavy periods are temporary

First few periods after starting menstruation, after stopping hormonal contraception, around stressful life events, postnatal initial periods, or first cycles after weight changes. These may settle without intervention over 2–3 cycles.

3. When heavy periods need investigation

Persistent heavy periods over 3 cycles; periods that have become heavier than previously; symptoms of anaemia (fatigue, breathlessness, dizziness); intermenstrual or postcoital bleeding; passing large clots; severe pain alongside heavy flow; affecting work, school or daily life. These warrant evaluation.

4. The basic workup

Full blood count and ferritin (iron deficiency from menstrual loss is very common). Thyroid function. Pelvic ultrasound (transvaginal preferred) for fibroids, polyps, adenomyosis, ovarian pathology. Endometrial biopsy in women over 45 or with risk factors. Coagulation profile in young women with longstanding HMB.

5. Common causes by age

Adolescents: anovulation, coagulation disorders. 20s–30s: fibroids, polyps, hormonal imbalance, copper IUD effect. 30s–40s: fibroids, adenomyosis, polyps, hormonal changes. 40s–50s: hormonal changes of perimenopause, polyps, hyperplasia (occasionally pre-cancer). After 50: any bleeding requires urgent evaluation.

6. Medical treatment options

Tranexamic acid (1 g three times daily during periods) reduces flow by 30–50%. NSAIDs (mefenamic acid) reduce flow and pain. Combined oral contraceptive regulates and lightens periods. Cyclical progestins. Mirena IUS reduces flow by 90% over 6 months.

7. When surgical options are appropriate

Failed medical management. Structural causes (fibroids distorting cavity, polyps). Severe ongoing HMB with significant impact. Patient preference after appropriate counselling. Options: hysteroscopic polyp/fibroid removal, endometrial ablation (family complete), myomectomy, hysterectomy.

8. Iron deficiency, do not ignore

Heavy periods are the leading cause of iron deficiency in reproductive-age women. Treat aggressively, oral iron for milder cases, intravenous iron for severe deficiency or oral intolerance. Aim for ferritin above 30 ng/ml, not just normal haemoglobin. Iron deficiency affects energy, concentration and quality of life independent of treating the underlying cause.