Long Periods in Perimenopause: How Long Is Too Long?

• A period that regularly lasts longer than 7 days in perimenopause is worth investigating — not just tolerating.
• The usual cause is anovulation: no egg, no progesterone, so the lining builds up and sheds slowly. But fibroids, polyps and endometrial pre-cancer peak at this same age.
• A transvaginal ultrasound (around Rs 1,000–2,500 privately) is the first test; if the lining is thick, an endometrial biopsy rules out hyperplasia and cancer.
• Treatment ranges from cyclical progesterone tablets and tranexamic acid to the levonorgestrel IUS (Mirena), which cuts bleeding by 80–90% and is an evidence-based alternative to hysterectomy.
• Iron deficiency is almost universal with months of heavy bleeding — test ferritin, treat it, and don't wait for anaemia to set in.
• Pregnancy is still possible until you have gone 12 full months without a period, so don't assume irregular bleeding can't be pregnancy-related.

A typical period lasts about 4 to 7 days. In a normal cycle the lining of the womb (endometrium) builds up under oestrogen, an egg is released mid-cycle, and the corpus luteum left behind makes progesterone for roughly 12 to 14 days. When no pregnancy happens, both hormones fall and the lining sheds quickly and completely.

In Perimenopause in Indian Women: Symptoms, Timing and Treatment this clockwork breaks down. Some cycles are anovulatory — no egg is released, so there is no corpus luteum and no progesterone. Others have a weak luteal phase with too little progesterone for too short a time. Without enough progesterone to organise it, the lining keeps growing under oestrogen, gets thicker than it should, and then sheds slowly and piecemeal rather than in one brisk bleed.

The practical rule used by gynaecologists worldwide: bleeding that lasts longer than 7 days deserves a proper look, especially if it is a change from your usual pattern. The same hormonal mechanism explains the other perimenopausal bleeding patterns — very heavy short periods, bleeding after a long gap, and spotting between bleeds.

• Anovulation (the usual cause): no ovulation means no progesterone, so the lining overgrows and sheds slowly — the classic long, dragging period.
• Fibroids: benign muscle growths in the womb wall. They peak in the perimenopausal years and are very common in Indian women. They increase bleeding by enlarging the lining's surface area and disrupting the womb's ability to contract. See our guide to uterine fibroids.
• Adenomyosis: when lining tissue grows into the muscle of the womb, causing prolonged, heavy and increasingly painful periods — see how it differs from endometriosis.
• Endometrial polyps: small benign outgrowths of the lining that grow under oestrogen and commonly cause prolonged or between-period bleeding.
• Thyroid problems: an underactive thyroid is a classic, easily missed cause of prolonged heavy bleeding — and hypothyroidism is common in Indian women.
• Endometrial hyperplasia or cancer: less common, but this is the age group where they appear, which is exactly why prolonged bleeding is investigated rather than just managed.

• Bleeding that lasts longer than 7 days
• Soaking through a pad or tampon every hour for 2 or more hours in a row
• Passing Menstrual Clots: Normal vs When to Worry larger than a two-rupee coin (about 25 mm)
• Bleeding between periods, particularly if it keeps happening
• Bleeding after sex
• Cycles shorter than 21 days
• Any bleeding at all after 12 months without a period (postmenopausal bleeding) — this always needs urgent assessment

Once a structural cause has been excluded or treated, prolonged bleeding from anovulation is treated by replacing the missing progesterone. This both stops an active bleed and lets the lining shed in an organised way.

For an active heavy bleed, doctors commonly prescribe a short course of norethisterone (Primolut N) or medroxyprogesterone (Provera) — typically over 10 to 14 days. Bleeding usually slows within 2–3 days and stops within 5–7 days; a few days after finishing the course a withdrawal bleed follows, which can be heavier than usual but is time-limited. A single course costs around Rs 100–300 and is available at any Indian pharmacy.

For ongoing control, cyclical progesterone taken for 10–14 days each month mimics the missing luteal phase and produces a predictable, lighter bleed. Dydrogesterone (Duphaston) is a widely used option in India with fewer androgenic side effects. The trade-offs of oral progesterone are real: it doesn't provide contraception, it has to be remembered daily, and side effects can include breast tenderness, bloating and mood changes. For more durable control, the hormonal IUS is usually the better choice — covered next. (Note: this is general information, not a prescription. Doses must be set by your own doctor.)

The levonorgestrel-releasing intrauterine system (LNG-IUS — Mirena, and Indian brands such as Eloira and Emily) is increasingly the first-line treatment for prolonged or heavy perimenopausal bleeding without a structural cause. It is a small T-shaped device that releases a tiny amount of progestogen directly onto the lining of the womb, thinning it so bleeding drops dramatically — while keeping the dose in the bloodstream low, so whole-body side effects are minimal. It lasts 5–7 years.

In trials and large studies, the IUS reduces menstrual blood loss by 80–90% within six months and stops periods altogether in roughly 1 in 5 women by a year. Both ACOG and FOGSI endorse it as an evidence-based alternative to hysterectomy for heavy bleeding. Insertion takes 5–10 minutes in an outpatient clinic, often with a local anaesthetic block or oral painkillers; it feels crampy during and for a few days after.

One thing to expect and not panic about: the first 3–6 months bring irregular spotting as the lining settles. This is normal and improves with time — but knowing it in advance stops women having the device removed too soon. In India the device plus insertion costs roughly Rs 15,000–22,000 privately, and far less at government tertiary hospitals where it is increasingly available. A real bonus in perimenopause: it also provides Copper IUD vs Mirena in India: A Plain-Language Comparison and can later serve as the progestogen half of hormone replacement therapy if you add oestrogen, giving a smooth transition through menopause.

If you can't or would rather not use hormones, two non-hormonal medicines help a lot during the bleeding days.

Tranexamic acid reduces menstrual blood loss by about 40–60%. It is taken only on heavy bleeding days, is well tolerated (mild nausea or headache at most), and doesn't interfere with contraception. It should be avoided if you have a clotting disorder or active blood clot. A cycle's supply costs around Rs 200–400 in India.

NSAIDs such as mefenamic acid or ibuprofen, taken during bleeding days, reduce flow by 20–40% and also ease cramps. They can be combined with tranexamic acid. Avoid them if you have a stomach ulcer, aspirin-sensitive asthma or kidney disease.

Iron replacement is essential, not optional. Months of heavy bleeding cause iron deficiency in most affected women, and it badly worsens fatigue, brain fog and quality of life. Check haemoglobin and ferritin at the start, and every 3–6 months if bleeding continues. For the full medical treatment ladder, see our guide to heavy menstrual bleeding.

Iron deficiency is endemic in Indian women even before heavy bleeding — community surveys put the figure above 50% — and women with prolonged perimenopausal bleeding sit at the most vulnerable end of that distribution.

Assessing iron needs both haemoglobin (does overt anaemia exist?) and ferritin (are stores low even before anaemia?). A ferritin below 30 µg/L signals iron deficiency regardless of haemoglobin; below 15 µg/L means severe depletion. Both tests are cheap (around Rs 200–400 each).

The modern approach to oral iron is alternate-day dosing of ferrous sulfate with a vitamin-C source (lemon, amla, orange) to boost absorption — research over the past decade shows it is better absorbed and gentler on the stomach than daily dosing. Continue for at least 3 months after ferritin normalises. Avoid taking iron with tea, coffee, dairy or calcium, which block absorption. Common Indian brands include Fefol, Livogen and Tonoferon.

If oral iron isn't tolerated or deficiency is severe, intravenous iron (ferric carboxymaltose / Ferinject, or iron sucrose / Venofer) replenishes stores quickly as a day-case infusion. For vegetarian diets, build meals around iron-rich foods — rajma, chana, ragi, sesame, jaggery and dark leafy greens — paired with vitamin C, and have your B12 and folate checked too, since deficiencies often travel together.

• Hysteroscopic polypectomy: a day-case procedure to remove a polyp through a thin scope passed through the cervix — no incision, recovery in a day or two.
• Myomectomy: removal of fibroids while keeping the womb, for women who want to preserve fertility or simply keep their uterus. It can be laparoscopic, robotic or open. Uterine artery embolisation is a radiology-based alternative.
• Endometrial ablation: destroys the womb lining and is suited to women who have completed their family and have a near-normal-sized uterus. It is not done if hyperplasia or cancer is present, or if pregnancy is still wanted.
• Hysterectomy: removing the womb is the definitive treatment when other options fail or specific pathology demands it. Modern keyhole and vaginal approaches mean recovery in 2–6 weeks rather than the longer recovery of older open surgery. Most women report a major improvement in quality of life.

Perimenopausal bleeding rarely stays the same, and tracking it is the single most useful thing you can do — both for your own peace of mind and to give your gynaecologist real information at follow-up. A simple paper diary or a cycle-tracking app lets you log start and end dates, flow, clots, pain and any spotting. Over 3–6 months a clear pattern emerges that beats trying to remember in the clinic.

The natural history is variable. Many women have a couple of years of irregular, prolonged or heavy bleeding before cycles space out and stop. Indian Menopause Society and FOGSI data put the average age of menopause in Indian women around 46–48 — a few years earlier than the Western average of 51 — so the symptomatic window often falls in the early forties.

Return to your doctor if, after your first assessment, you develop a new pattern of heavy or longer bleeding, recurrent bleeding between periods, bleeding after sex, new pelvic pain or pressure, worsening anaemia symptoms, or any bleeding after 12 months without a period. The threshold for repeating a scan or biopsy should be low: lining problems can develop over months, and one normal test does not rule out future change.

• FIGO classification system (PALM-COEIN) for causes of abnormal uterine bleeding in non-gravid women of reproductive age
• ACOG: Heavy Menstrual Bleeding (FAQ)
• NICE Guideline NG88: Heavy menstrual bleeding — assessment and management
• WHO: Anaemia
• NHS: Heavy periods
• Indian Menopause Society — clinical resources