The short answer: A normal period lasts 2 to 7 days. One period that runs a day or two longer than usual is often down to a cycle without ovulation, stress, or a change in contraception. Periods that regularly last more than 7 days, or bleeding that won't stop, should be checked by a doctor. They can be a sign of fibroids, polyps, thyroid problems or a bleeding disorder, and long bleeding can lead to anaemia. If you could be pregnant, take a test.
What counts as a long period?
The NHS describes a typical period as lasting 2 to 7 days, usually about 5, with the heaviest bleeding in the first 2 days. A period that lasts more than 7 days is considered prolonged. Doctors often look at length and heaviness together: periods lasting more than 7 days are one of the NHS signs of heavy periods, also called menorrhagia.
It helps to separate real bleeding from the tail end. Many women have a day or two of light brown spotting after the main flow stops. If you only need a liner for those days, that's usually just old blood clearing out, not a longer period. Our guide to brown period blood explains why it changes colour.
What matters most is how many days you bleed enough to need a pad or period panty, how heavy that bleeding is, and whether this is new for you.
One long period vs a new pattern
A single long period is common and often settles on its own next cycle. A pattern of long periods, three months or more, is more likely to have a cause worth finding. Here is a quick way to think about it.
| Situation | What it often means | What to do |
|---|---|---|
| One period runs 8 or 9 days, then the next is normal | Often a cycle without ovulation, stress or illness | Note it down and watch the next cycle |
| Periods have lasted more than 7 days for 2 or 3 months | A new pattern that may have a cause such as fibroids, polyps or thyroid problems | Book a doctor's appointment |
| Bleeding has gone on for 2 weeks or more | Needs checking, both for the cause and for anaemia | See a doctor soon |
| Long bleeding when you could be pregnant | Could be a pregnancy complication rather than a period | Take a test and see a doctor promptly |
| Very heavy bleeding with dizziness or fainting | Possible significant blood loss | Get urgent help |
Hormonal causes
A cycle without ovulation
Normally, ovulation (the release of an egg) triggers progesterone, which keeps the womb lining stable and then lets it shed neatly. In a cycle where you don't ovulate, oestrogen keeps building the lining without that balance. It then sheds slowly and unevenly, which can mean a long, drawn-out period. This happens often in the first few years after periods start, in perimenopause, and with PCOS.
PCOS and thyroid problems
Polycystic ovary syndrome (PCOS, which the NHS now also calls PMOS) causes irregular ovulation, so periods may be infrequent and then long or heavy when they arrive. An underactive thyroid can also make periods heavier and longer, usually with tiredness, weight gain, feeling cold, constipation or dry skin. Our guide to PCOS symptoms and diagnosis covers the signs.
Perimenopause
From the late 30s and 40s, ovulation becomes less regular as you approach menopause. Long or heavy periods are a common part of this stage, but they still deserve a check to rule out other causes.
Stress, illness and weight change
Major stress, a bad illness, or significant weight gain or loss can all upset ovulation for a cycle or two. The bleeding pattern usually settles once things calm down.
Contraception and medicines
- Starting hormonal contraception: irregular, long or unpredictable bleeding is common in the first few months of the progestogen-only pill, the implant, the injection or the hormonal coil. It often settles, but talk to your doctor if it doesn't, or if it bothers you.
- Copper IUD (Copper-T): periods can be longer, heavier and more painful, especially in the first months after it is fitted.
- The emergency contraceptive pill: can change the timing and length of your next period.
- Missed pills: can cause breakthrough bleeding that runs into your period.
- Blood thinners: the NHS lists some anticoagulant medicines among causes of heavy periods. Don't stop a prescribed medicine on your own; ask your doctor.
Conditions in the womb
Fibroids
Fibroids are common, non-cancerous growths in or around the womb. The NHS notes they are more common in women of Asian background and those who haven't had a full-term pregnancy. Fibroids inside or close to the womb lining can make periods long and heavy, sometimes with clots, a feeling of pressure, or needing to pee often.
Polyps
Polyps are small, usually harmless growths of the womb lining or cervix. They can cause longer periods, spotting between periods, or bleeding after sex.
Adenomyosis and endometriosis
In adenomyosis, the womb lining grows into the muscle wall of the womb, causing long, heavy and painful periods, often in women in their 30s and 40s. Endometriosis, where similar tissue grows outside the womb, mainly causes pain but can also affect bleeding.
Infection
Pelvic inflammatory disease, an infection of the womb and tubes, can cause bleeding between periods or a period that seems to go on, often with pain, fever or unusual discharge.
Rarely, long or irregular bleeding can be a sign of changes in the womb lining, including cancer, especially after 45. That's one reason doctors take persistent changes seriously.
Bleeding disorders
If you have always had long, heavy periods since your very first ones, it's worth thinking about a bleeding disorder. The most common is von Willebrand disease, where blood doesn't clot as well as it should. Clues include easy bruising, frequent nosebleeds, bleeding gums, long bleeding after a cut, or heavy bleeding after a tooth extraction, surgery or childbirth. A family history of the same is another hint. A simple set of blood tests can check.
Could it be a pregnancy problem?
If there's any chance you're pregnant, bleeding that seems like a long period could be a miscarriage or, more rarely, an ectopic pregnancy, where a pregnancy grows outside the womb. Do a home pregnancy test. The NHS says most tests can be used from the first day of a missed period, or at least 21 days after unprotected sex if you don't know when your period is due. Our guide to bleeding in pregnancy explains the warning signs.
When to see a doctor or get urgent help
See a doctor if
- Your period lasts more than 7 days, especially more than once
- You've been bleeding for two weeks or longer
- You need to change a pad or period panty every 1 to 2 hours, or wear two products at once
- You pass clots bigger than about 2.5 cm, roughly the size of a ₹10 coin
- You feel tired, dizzy or short of breath, or look pale
- You bleed between periods or after sex
- You have new or severe period pain
- You've had long periods since your teens, along with easy bruising or nosebleeds
- You might be pregnant
Get urgent help if
Call 112 or 108, or go to the nearest hospital emergency department, if you are soaking through a pad or period panty every hour for several hours, you feel faint, confused or very unwell, or you have heavy bleeding with severe tummy pain, shoulder-tip pain or dizziness and could be pregnant.
What the doctor may do
Expect questions about how long and how heavily you bleed, your contraception, any chance of pregnancy, pain, and other symptoms such as weight change or tiredness. It helps to bring a record of your last few periods.
Your doctor may suggest:
- A pregnancy test
- Blood tests for haemoglobin and iron (anaemia), thyroid function, and sometimes clotting
- A pelvic examination
- A pelvic ultrasound to look for fibroids, polyps or a thickened lining
- In some cases, a hysteroscopy (a thin camera into the womb) or a sample of the womb lining
Treatment depends on the cause. The NHS lists options for heavy, long periods including the hormonal coil, the combined pill, tranexamic acid tablets that reduce bleeding, and anti-inflammatory painkillers such as mefenamic acid. Your doctor may also suggest iron tablets if you're anaemic, thyroid treatment if that's the cause, or removal of polyps or fibroids.
Looking after yourself in the meantime
Keep a bleeding diary
For each period, note the start and end date, the days you bled heavily, how many times you changed protection each day, and any clots or flooding. For example: "Day 1 to 3 heavy, changing every 3 hours; day 4 to 9 medium; day 10 to 11 spotting." This gives your doctor a clear picture in a minute.
Protect your iron levels
Long bleeding drains iron, and anaemia is already common among Indian women. Eat iron-rich foods every day: palak, methi, drumstick leaves, dals, rajma, chana, ragi, jaggery, dates, eggs, fish and meat. Add vitamin C, such as amla, lemon, guava or a tomato salad, to help absorption, and keep chai and coffee away from mealtimes.
Pain relief
Ibuprofen can ease cramps and may reduce bleeding a little for some women; paracetamol helps with pain. Check the packet or ask a pharmacist, and don't take ibuprofen if you have asthma made worse by it, stomach ulcers, or are told to avoid it.
Stay comfortable
Several days of bleeding is tiring, and changing pads at work or college can be a hassle. A period panty can be worn for up to 8 hours depending on flow, and the high waist style gives more coverage for heavy days and nights. For the light days at the end, a panty liner is usually enough. Change more often on your heaviest days.
Frequently asked questions
Is a 10-day period dangerous? Once isn't usually dangerous, but it's worth seeing a doctor, especially if bleeding is heavy or it happens again.
Can stress make my period last longer? Yes. Stress can upset ovulation, which can make bleeding last longer or come at odd times. If it keeps happening, see a doctor.
Why has my period been going on for two weeks? This needs a doctor's check. It may be hormonal, but fibroids, polyps, thyroid problems or a pregnancy complication need ruling out, and long bleeding can cause anaemia.
Can a Copper-T make my periods longer? Yes, longer and heavier periods are a known effect, especially in the first months. If it doesn't settle or you feel tired and breathless, see your doctor.
Is it normal for periods to last longer in your 40s? It's common in perimenopause, but persistent long periods still need checking for fibroids, polyps and changes in the womb lining.
How can I stop a long period at home? There's no safe home remedy that stops bleeding. Rest, eat iron-rich food and see a doctor, who may prescribe medicine such as tranexamic acid.
Does a long period mean I can't get pregnant? Not necessarily. But if long periods come with irregular cycles and you're trying to conceive, ask your doctor to check you're ovulating.
Related reading
- Heavy Periods: How Much Bleeding Is Too Much?
- Blood Clots in Your Period: Normal or Not? The ₹10 Coin Test
- Bleeding Again After Your Period Ended? What It Means, by Timing
- How Periods Change in Your 30s and 40s
This article is for general information and doesn't replace advice from your doctor.
Sources: NHS: Heavy periods, NHS: Periods, NHS: Irregular periods, NHS: Fibroids, NHS: Doing a pregnancy test