Periods Lasting 8 Days or More: Causes and Treatment

• A period lasting more than 7 days is prolonged; beyond 10 days is abnormal regardless of how light the flow feels by the end.
• The commonest causes are uterine fibroids, adenomyosis, endometrial polyps, hormonal (anovulatory) cycles, thyroid problems and — less often — bleeding disorders or, in older women, endometrial precancer.
• Track 2–3 cycles before deciding it is a pattern, then bring dates, durations and pad counts to your gynaecologist.
• Most causes are found with a transvaginal ultrasound, a CBC, ferritin and a TSH — usually in one visit.
• Treatment starts simple: tranexamic acid on heavy days, then hormonal options or a Mirena IUD; hysterectomy is the last resort, rarely needed.
• Long periods are a leading driver of iron-deficiency anaemia in Indian women — treat the bleeding and replace iron at the same time.

A typical period lasts 3 to 7 days, with most people bleeding for 4 to 5 days. Prolonged menstrual bleeding means any period lasting more than 7 days; beyond 10 days is abnormal whatever the volume. An 8-day period that is light by the end may not be heavy, but it is long and worth attention. A 12-day period that stays heavy throughout is both long and heavy, and needs prompt evaluation.

A few terms help when you talk to your doctor. Menorrhagia means heavy flow (more than about 80 ml a month). Polymenorrhoea means periods coming too close together (less than 21 days apart). When bleeding is both prolonged or heavy and irregular in timing, doctors sometimes call it menometrorrhagia. What matters most is whether your total monthly blood loss is more than your body can replace from the iron in your food.

A practical home test for whether a long period is doing harm: if you notice new fatigue, breathlessness climbing stairs, palpitations, hair fall or trouble concentrating, the bleeding may be outpacing your body's ability to keep up. Even a period that is “only” 8–9 days but arrives every 3 weeks instead of every month adds up to almost twice the normal monthly loss and can quietly deplete iron over months.

Track for 2–3 cycles before deciding it is a true pattern. A single long period — after a stressful month, a missed cycle or a new medication — is often a one-off. Two or three prolonged periods in a row, especially with new clots, pain, irregular timing or fatigue, shifts the picture from natural variation to a pattern worth investigating. Bring your cycle dates, durations, daily pad counts, clot sizes and pain scores to the appointment — it is far more useful than trying to recall months of periods from memory.

Uterine fibroids (medically, leiomyomas) are benign muscle growths of the uterus and the most common structural cause of prolonged heavy periods in Indian women aged 30 to 50. Community estimates put fibroid prevalence at roughly 20–40%, rising with age and peaking in the early 40s before easing after menopause. Many fibroids cause no symptoms and are found by chance on a scan. The ones that prolong bleeding are usually submucosal (just under the lining) or large intramural fibroids (within the wall) that distort the uterine cavity.

Beyond a long period, fibroids can cause heavy flow with large Period Clots: When They're Normal and When to Worry (India), pelvic pressure or fullness, frequent urination, constipation, lower back pain, pain during sex, a visibly swollen abdomen, and sometimes fertility difficulties. Location matters more than size: a submucosal fibroid of just 2–3 cm can cause heavy prolonged bleeding, while a much larger fibroid on the outer surface of the uterus may cause none at all.

Diagnosis is straightforward. A transvaginal ultrasound (TVS, roughly ₹1,000–3,000 privately, subsidised or free at government and FOGSI-affiliated centres) shows the number, size and location of fibroids. Saline infusion sonography (SIS, about ₹2,000–5,000) gives a clearer view of submucosal fibroids and the cavity. MRI (about ₹6,000–12,000) is added when surgery is being planned or to tell a fibroid apart from adenomyosis.

Medical treatment for fibroid-related bleeding includes tranexamic acid 1 g three to four times a day during heavy days (₹100–300 per strip, cutting flow by 30–50%); combined oral pills or cyclical progestin; and the Mirena LNG-IUS, which is especially effective for smaller submucosal and intramural fibroids. GnRH agonists such as leuprolide may be used short-term to shrink large fibroids before surgery.

Surgical options preserve the uterus wherever possible: hysteroscopic resection of submucosal fibroids (an outpatient procedure), Myomectomy in India: Types, Cost, Recovery & Fertility when fertility is desired, and uterine artery embolisation as a minimally invasive radiology alternative. Hysterectomy is the definitive option only when the family is complete. For the complete picture, see our guide to managing uterine fibroids in India.

Adenomyosis is the growth of endometrial tissue (the lining) into the muscular wall of the uterus. It is one of the most under-diagnosed gynaecological conditions in India — its symptoms overlap with fibroids and endometriosis, it needs a skilled ultrasonographer to spot, and too many women are simply told their long, heavy, painful periods are “normal.”

The classic picture is a woman in her 30s or 40s with symptoms that worsen over years: long heavy periods (often 8–12 days), large clots, severe cramping that begins a day or two before bleeding and continues through it, deep pain during sex, and a uterus that feels bulky and tender on examination — soft and enlarged, unlike the firm knobbly feel of fibroids. If pain is your dominant symptom, our guide to painful periods and dysmenorrhoea covers relief in detail.

Adenomyosis often coexists with endometriosis and with fibroids, which muddies the picture. A meaningful share of uteruses removed for other reasons show adenomyosis incidentally, suggesting it is far more common than the number of women formally diagnosed.

Diagnosis: an experienced ultrasonographer can identify the classic ultrasound features (heterogeneous myometrium, asymmetric wall thickening, an indistinct border between lining and muscle, small myometrial cysts). MRI gives the clearest non-invasive diagnosis. Historically, confirmation needed examining the uterus after hysterectomy, but modern imaging is good enough that surgery is rarely required just to confirm it.

Treatment: NSAIDs such as mefenamic acid for pain; tranexamic acid for flow; combined pills used continuously; progestin-only options including dienogest 2 mg daily, which has the strongest evidence for adenomyosis and endometriosis; and the Mirena LNG-IUS, which is particularly effective here. GnRH agonists with add-back therapy are used short-term, and hysterectomy is reserved as the definitive option when the family is complete. See our full guide to adenomyosis treatment and management and how it differs from endometriosis.

Endometrial polyps are small soft outgrowths from the lining of the uterus, ranging from a few millimetres to several centimetres. They are common in the 40s and 50s but can occur at any age, and they are one of the most easily treated causes of prolonged bleeding — often removed in a single outpatient procedure with excellent results.

The typical pattern is a long or heavy period combined with spotting between periods — a long bleed, then spotting that gradually merges into the next period so it feels like one continuous flow. Polyps can also cause spotting after sex, and they are a recognised cause of bleeding after menopause, which always needs evaluation.

Diagnosis: a transvaginal ultrasound may show a thickened or irregular lining but is not always definitive. Saline infusion sonography outlines polyps far more clearly. Diagnostic Hysteroscopy in India: Procedure, Costs and What to Expect is the gold standard and allows the polyp to be removed in the same sitting (“see and treat”).

Treatment is hysteroscopic polypectomy — removal through a thin camera passed through the cervix, with no abdominal cut. It usually takes 15–30 minutes under short sedation or anaesthesia as a day-care procedure, with normal activity resuming within a day or two. The tissue is sent for histology to confirm it is benign; the small minority with premalignant or malignant changes need further treatment.

After removal, periods usually return to normal within 1–2 cycles, with the prolonged bleeding and spotting both settling. New polyps can recur (around 10–15% within 5 years), more so with obesity, hypertension, diabetes, prior PCOS or tamoxifen use, so a follow-up scan every year or two is reasonable for these women. Cervical polyps are similar growths on the cervix that can be removed in a quick clinic procedure and rarely prolong bleeding on their own.

Hormonal prolonged bleeding comes from anovulatory cycles — cycles where no egg is released, so there is no progesterone to balance estrogen, the lining grows unchecked, and eventually sheds in a long, heavy, disorganised bleed. The classic windows are the first year or two after periods begin, perimenopause in the 40s, and PCOS at any age in between.

PCOS in Indian women often shows up as prolonged, irregular bleeding rather than the commonly taught “absent periods.” The pattern is unpredictable: months of light or skipped periods alternating with long heavy bleeds when the lining finally sheds. Other features include acne, excess hair growth, weight gain, hair fall and insulin resistance. Diagnosis combines history, ultrasound and blood tests. If you are unsure how PCOS differs from PCOD, see PCOD vs PCOS explained.

Hypothyroidism is a common and easy-to-miss cause of long periods in Indian women. The classic picture is heavy long periods with fatigue, weight gain, cold intolerance, dry skin, hair fall and constipation. A simple TSH test screens for it, and levothyroxine usually normalises periods within 2–4 months — see hypothyroidism in Indian women. Hyperthyroidism more often causes shorter, lighter periods but can occasionally prolong them.

High prolactin — usually from a small benign pituitary growth, sometimes from medications such as risperidone or domperidone — can cause prolonged or irregular bleeding, often with milky breast discharge unrelated to breastfeeding and sometimes headaches. A prolactin blood test screens for it, and treatment with cabergoline or bromocriptine usually settles cycles within a few months. Read more on high prolactin.

Perimenopause in the early-to-mid 40s commonly produces long heavy bleeds as cycles become anovulatory, alternating with skipped or short periods over several years. Management ranges from a Mirena IUD or low-dose pills to cyclical progestin or hormone therapy depending on the stage. See our guide to perimenopausal period changes and bleeding patterns in perimenopause.

Roughly 10–20% of teenagers and young women with very heavy, prolonged bleeding from their very first period have an underlying bleeding disorder — most often von Willebrand disease, the commonest inherited bleeding disorder. It is frequently diagnosed years late because the heavy periods are written off as “just heavy periods.” Other inherited causes include platelet function disorders and rare clotting factor deficiencies.

Clues that should prompt screening for a bleeding disorder include:

Work-up combines gynaecology and haematology: a complete blood count, a coagulation profile (PT, aPTT), von Willebrand factor antigen and activity, factor VIII level, and platelet function tests if needed. Specialist bleeding-disorder services are available at major centres such as AIIMS Delhi, PGI Chandigarh, CMC Vellore and Tata Memorial Mumbai, and across large private networks.

Treatment combines tranexamic acid as a standard adjunct, hormonal suppression of the lining with combined pills or a Mirena IUD, and desmopressin (which temporarily boosts von Willebrand factor) before periods or surgery. The Mirena IUD is especially useful because it dramatically reduces flow without systemic effects. Severe cases may need factor replacement through haematology.

Blood-thinning medication is an increasingly common cause of long heavy periods, particularly in older women on warfarin (for atrial fibrillation, heart valve disease or previous clots), newer anticoagulants such as apixaban, rivaroxaban or dabigatran, and women on dual antiplatelet therapy after a cardiac stent. The same effect that prevents strokes and clots also makes periods heavier and longer. Management needs careful coordination between your gynaecologist and cardiologist or physician — options include adding tranexamic acid on heavy days, a Mirena IUD, switching the anticoagulant, or fine-tuning the dose within the target range.

Endometrial hyperplasia (a precancerous thickening of the lining) and endometrial cancer are uncommon causes of prolonged bleeding in younger women, but they become steadily more important to rule out with age — particularly in women over 40, anyone bleeding after menopause, and those with specific risk factors. They are ruled out aggressively for a good reason: both are highly curable when caught early and much more dangerous when missed.

Risk factors include obesity (body fat converts other hormones into estrogen, stimulating the lining), diabetes, hypertension, long-standing PCOS with chronic anovulation, never having been pregnant, late menopause, early first periods, estrogen-only hormone therapy without progestin, tamoxifen treatment, and Lynch syndrome (an inherited predisposition to endometrial, ovarian and colon cancer).

Bleeding after menopause — any bleeding after 12 consecutive months without periods — is the single most important presentation to investigate promptly: a minority of cases turn out to be endometrial cancer, and the rest are mostly hyperplasia, polyps or atrophy that still need diagnosis. Postmenopausal bleeding warrants a gynaecology appointment within a week. Learn the warning signs of endometrial cancer.

Diagnosis: a transvaginal ultrasound measures the lining thickness (in postmenopausal women, under 4–5 mm is reassuring; thicker needs a biopsy). An endometrial biopsy is the gold-standard test and can be done in the clinic with minimal discomfort; hysteroscopy allows direct viewing and targeted sampling. In premenopausal women, a biopsy is added for anyone over 40 with persistent long or heavy bleeding, anyone with risk factors, and anyone whose bleeding has not responded to medical treatment.

Treatment of hyperplasia is progestin (oral or a Mirena IUD) for simple hyperplasia without atypia, and hysterectomy for atypical hyperplasia or hyperplasia not responding to progestin in women who have completed their family. Early-stage endometrial cancer is treated with hysterectomy (often with removal of tubes and ovaries), with high cure rates for early disease. The take-home: prolonged bleeding in women over 40 or with risk factors deserves a biopsy, not just trial treatment. For a deeper look, see endometrial (uterine) cancer in Indian women.

Prolonged periods are a leading cause of iron-deficiency anaemia in Indian women of reproductive age — a problem NFHS-5 found in 57% of this group. The harm is not any single period but the slow, steady loss of iron cycle after cycle, until stores fall below the level needed to make haemoglobin.

Early symptoms are easy to dismiss: fatigue that sleep does not fix, breathlessness climbing stairs, palpitations, dizziness, hair fall, brittle nails, brain fog and reduced exercise tolerance. These can run for months before anyone connects them to the long periods. Many women are diagnosed only when haemoglobin crashes in pregnancy, at a routine check, or during an unrelated hospital admission. The symptoms of iron deficiency in Indian women are worth knowing in detail.

Work-up: a complete blood count shows haemoglobin and red-cell size — iron deficiency typically produces small, pale cells. Serum ferritin reflects actual iron stores and falls before haemoglobin does, making it the more sensitive early marker. Ferritin below 30 ng/ml signals low stores even with a normal haemoglobin; below 15 ng/ml means severely depleted; haemoglobin below 12 g/dl in women defines anaemia.

Treatment is two-pronged and simultaneous: treat the bleeding (medical or surgical, depending on cause) and replace the iron. Replacing iron without stopping the bleeding is futile. The Government of India's Anemia Mukt Bharat programme provides free iron and folic acid tablets to reproductive-age women and adolescent girls through anganwadis, schools, PHCs and ASHA workers — usually one tablet daily for 3–6 months, with a CBC and ferritin recheck at 3 months. For women who cannot tolerate or absorb oral iron, intravenous iron sucrose or ferric carboxymaltose restores stores within weeks. Our iron supplements guide for Indian women compares the common brands and forms.

Severe symptomatic anaemia (haemoglobin under 7–8 g/dl with breathlessness, chest pain or fainting) sometimes needs a transfusion, free at government and Red Cross blood banks. Iron-rich Indian foods — palak, methi, drumstick leaves, ragi, bajra, jaggery, dates, eggs and meat where the diet allows — paired with vitamin C sources (amla, lemon, guava, citrus, tomato) help long-term maintenance but cannot replace tablets in active treatment. Keep an hour's gap between iron tablets and tea or coffee, which strongly block absorption. See how iron deficiency and heavy periods are linked.

The Indian work-up for long periods follows a logical sequence. First, a detailed history: cycle dates, duration, day-by-day flow, clot size, pain, impact on daily life, age at first period, pregnancies and miscarriages, contraception, current medications (including blood thinners and hormones), family history of fibroids, bleeding disorders or gynaecological cancers, and any signs of an underlying condition — acne, excess hair, thyroid symptoms, weight changes or postmenopausal status.

A pelvic examination assesses uterine size and tenderness (a bulky uterus suggests adenomyosis or fibroids), checks for a cervical lesion or polyp, and looks for any mass. A urine pregnancy test is added for anyone sexually active.

First-line blood tests usually include a CBC, ferritin and TSH; a coagulation profile and von Willebrand studies if bleeding has been present since the first period or there are clues to a bleeding disorder; hormone tests (FSH, LH, estradiol, AMH) if PCOS or perimenopause is suspected; and prolactin if high prolactin is suspected. A vaginal swab is added if infection is likely.

Imaging starts with the transvaginal ultrasound — the workhorse that identifies fibroids, polyps, the bulky uterus of adenomyosis, ovarian cysts and lining thickness. Saline infusion sonography gives a clearer view of polyps and submucosal fibroids, and MRI is reserved for complex fibroids, adenomyosis or surgical planning.

Second-line steps include diagnostic and operative hysteroscopy to view the cavity directly and remove polyps or submucosal fibroids in the same sitting, and endometrial biopsy for any woman over 40 with persistent unexplained bleeding, anyone with risk factors for endometrial cancer, and anyone whose bleeding has not responded to first-line treatment. A D&C is now used selectively rather than routinely — see dilatation and curettage in India.

Where to go: FOGSI-affiliated gynaecology clinics (find them via fogsi.org); private chains such as Apollo, Cloudnine, Fortis, Manipal and Max (online booking, often same-week appointments); government tertiary centres such as AIIMS, KEM Mumbai, JIPMER, CMC Vellore and PGI Chandigarh (lower cost or free, longer waits); and district hospitals and CHCs (free, longest waits). Ayushman Bharat PMJAY covers consultation, ultrasound, hysteroscopy and most surgeries for eligible families. If you are unsure whether your bleeding warrants a visit, our guide on when to see a doctor for abnormal periods can help.

The treatment ladder for long periods rises step by step, with the starting rung set by cause, age, fertility plans and severity. First-line for most women without an immediate fertility goal is tranexamic acid 1 g three to four times a day during the heaviest 3–5 days only — non-hormonal, fertility-neutral, around ₹100–300 per strip, cutting flow by 30–50% within a cycle or two. Mefenamic acid 500 mg three times a day adds pain relief plus modest flow reduction.

Hormonal first-line options suit women who also want contraception or have a hormonal cause: combined oral pills regulate cycles and reduce flow by 30–50%; cyclical progestin such as norethisterone is taken across the cycle; continuous progestin such as dienogest 2 mg daily is especially good for adenomyosis and endometriosis; and the DMPA injection every 3 months often produces no periods after a few doses.

The Mirena LNG-IUS is the gold-standard medical treatment, reducing flow by 80–95% over 5 years (and often stopping periods altogether) while also providing contraception. It is particularly effective for hormonally driven bleeding, adenomyosis, smaller submucosal fibroids and prolonged bleeding when the uterus is not too distorted. It is covered by PMJAY at empanelled centres and is fully reversible, with fertility returning within a few cycles after removal. To weigh it against the copper option, see copper IUD vs Mirena.

Surgical options come in when medical treatment fails or a structural cause needs physical removal: hysteroscopic polypectomy or submucosal fibroid resection; endometrial ablation when the family is complete (it dramatically reduces bleeding but rules out future pregnancy); uterine artery embolisation for selected larger fibroids; myomectomy when fertility must be preserved; and hysterectomy as the definitive option for women whose family is complete.

Iron-deficiency anaemia is treated in parallel — free Anemia Mukt Bharat tablets, oral iron, intravenous iron for severe deficiency, and transfusion for severe symptomatic anaemia.

Modern Indian practice strongly favours uterus-sparing options first and reserves hysterectomy for women whose family is complete and in whom medical and uterus-sparing surgical options have been exhausted or are unsuitable. Minimally invasive routes (vaginal, laparoscopic, robotic) are preferred over open surgery wherever possible. For the complete ladder with costs, see our heavy menstrual bleeding treatment guide.

Book a routine gynaecology appointment if your periods regularly last more than 7 days, if a pattern of long periods has lasted 2–3 cycles, or if you have any sign of iron deficiency — fatigue, breathlessness, palpitations or hair fall. Bring your tracked cycle data.

Seek prompt evaluation (within a week) for:

Seek emergency care the same day if you are soaking a pad or more every hour for several hours, passing very large clots with dizziness or fainting, or have severe breathlessness or chest pain — these point to dangerous blood loss or severe anaemia. Our guide on abnormal periods and when to see a doctor explains the red flags in more depth.

• ACOG — Heavy Menstrual Bleeding (FAQ)
• NICE Guideline NG88 — Heavy menstrual bleeding: assessment and management
• NHS — Heavy periods (menorrhagia)
• WHO — Anaemia
• National Family Health Survey (NFHS-5), India — IIPS & MoHFW
• Anemia Mukt Bharat — Ministry of Health and Family Welfare, Government of India
• FIGO Classification of Causes of Abnormal Uterine Bleeding (PALM-COEIN)