long lasting period

Overview

A long-lasting period is when your menstrual bleeding lasts longer than 7 days. Most periods last between 2 and 7 days, though everyone is different. Long-lasting periods can be heavy or light, and they are a common problem. They are not usually dangerous, but they can be uncomfortable, embarrassing, and can lead to low iron or anaemia. There are many possible causes, and most can be treated. This article follows general guidance from the UK National Health Service (NHS).

Yes. It is one of the most common menstrual problems. Around 1 in 3 women and people who have periods will experience heavy or prolonged menstrual bleeding at some point in their lives.

It can affect anyone with periods. It is often seen in teenagers in the first few years after their period begins, and in women and people approaching menopause (usually in their 40s or 50s). It can also affect you if you have certain medical conditions or if you take certain medicines.

Symptoms

Common symptoms

• Periods that last longer than 7 days
• Bleeding so heavy you need to change your pad or tampon every 1–2 hours
• Passing blood clots larger than a grape
• Cramping or pain in your lower belly
• Feeling tired, dizzy, or short of breath (possible signs of anaemia)
• Bleeding between periods, or after sex

Symptoms in children

• A period that lasts more than 7 days, especially in the first year or two after starting
• Bleeding that is heavy enough to cause frequent pad or tampon changes
• Needing to stay home from school or avoid sports because of bleeding
• Feeling very tired, pale, or lightheaded

Symptoms in older adults

• A change in your normal period pattern, with longer bleeding than usual
• Bleeding that starts again after you have gone a year without a period (post menopausal bleeding)
• Heavy bleeding with an irregular cycle
• Pelvic pain or pressure along with bleeding

Causes

Main causes

• Hormone imbalance: when hormones like oestrogen and progesterone are out of balance, the womb lining can become thicker and takes longer to shed.
• Uterine fibroids: non-cancerous growths in the womb that can make periods heavier and longer.
• Uterine polyps: small, soft growths on the womb lining that can cause bleeding.
• Adenomyosis: a condition where the womb lining grows into the muscle of the womb.
• Bleeding disorders: conditions that make it harder for blood to clot, such as Von Willebrand disease.
• Underactive thyroid (hypothyroidism): a medical condition that can affect your menstrual cycle.
• Certain medicines: for example, anticoagulants (blood thinners) can make bleeding heavier.

Risk factors

• Being a teenager or approaching menopause.
• Being overweight or having obesity.
• Having a family history of fibroids or heavy periods.
• Having conditions such as polycystic ovary syndrome (PCOS), endometriosis, or a bleeding disorder.
• Use of certain types of intrauterine devices (IUDs) — some can make periods heavier or longer while others can make them lighter.

When to see a doctor

See a doctor urgently if:

• If you are soaking through one pad or tampon every hour for more than two hours.
• If you have bleeding after your periods have stopped for more than 12 months (post menopausal bleeding).
• If you might be pregnant and have bleeding.
• If you feel faint, dizzy, or very short of breath with your period.

Book a routine appointment if:

• If your periods have lasted longer than 7 days for two or three cycles in a row.
• If heavy or long periods are interfering with your everyday life.
• If you always feel tired, have headaches, or notice your skin is paler than usual (possible signs of anaemia).
• If you want to find a method to make your periods lighter and more predictable.

Diagnosis

Your doctor will start by asking about your medical history and your periods. They may ask you to keep a diary of your cycles: how many days you bleed, how heavy it is, and any pain. They may also do a physical examination, including a gentle internal examination if you agree and feel comfortable. This helps them feel for fibroids or other changes. It is usually quick and you can ask to stop at any time.

Tests that may be done

• Blood tests to check for anaemia, thyroid function, and hormone levels.
• A pelvic ultrasound scan to look at the womb, ovaries, and womb lining.
• A sample (biopsy) of the womb lining if needed, to rule out any abnormal cells.
• Hysteroscopy: a thin camera inserted into the womb to look at the lining — this is only available in some clinics.

What to expect at your appointment

Your appointment may take a little longer than a normal check-up. The doctor will explain each step and ask why you are there. You can ask questions at any time. You will not be judged or dismissed. If you are offered a pregnancy test, that is routine. You should leave with a clear idea of what happens next, whether that is more tests, treatment, or reassurance.

Treatment

Treatment aims to reduce bleeding, help you feel better, and treat the cause if one is found. Your options will depend on your symptoms, your age, and your future plans for pregnancy. Some people only need simple self-care and monitoring, while others benefit from hormonal or non-hormonal medication. In some cases, a minor procedure or surgery may be recommended.

Self-care at home

• Keep a period diary to track your cycle and symptoms — it helps both you and your doctor.
• Use high-absorbency products like pads, tampons, or a menstrual cup, and change them regularly.
• Use over-the-counter pain relief for cramps as recommended by your pharmacist.
• Rest when you need to and stay hydrated.
• Eat iron-rich foods like lean meat, leafy greens, beans, and fortified cereals.

Medical treatments

Medical treatment may include hormonal options such as a hormonal intrauterine system (a small device placed in the womb), the combined contraceptive pill, or progestogen-only tablets. Non-hormonal medicines that help reduce bleeding and pain are also available. Medicines that help your blood clot may be used in some cases. Your doctor will explain the benefits, possible side effects, and how long to use them. They will choose a treatment that fits your health history and needs.

When is surgery considered?

Surgery may be considered if other treatments have not helped or if a fibroid or polyp is found. Options include removing the growth, removing the lining of the womb (endometrial ablation), or in severe cases removing the womb (hysterectomy). Hysterectomy is a major operation and is only considered when no other options are suitable, especially if you do not wish to have children in the future. Your doctor will discuss all the details and give you time to decide.

Living with this condition

Living with long periods can be manageable with a little planning. Keep spare products in your bag, choose comfortable clothing on heavy days, and schedule rest when you can. If your period affects work or education, talk to your manager or tutor about temporary flexibility. You might find it useful to carry a small 'period kit' with pain relief, wipes, and a change of underwear.

Lifestyle tips

• Try gentle activities like walking or swimming to boost your mood and energy.
• Get enough sleep and find ways to relax, such as deep breathing or reading.
• Use a hot water bottle or warm bath to ease cramps.
• Make time each month to rest around your heaviest days.
• Talk to someone you trust about what you are going through.

Diet and exercise

Eat a balanced diet with plenty of iron to replace what you lose. Pair iron-rich foods with vitamin C (such as oranges or tomatoes) to help your body absorb it. Drink plenty of water. Regular, moderate exercise such as walking, cycling, or yoga can help with cramps and improve your energy levels. Avoid excessive exercise if you feel very tired, and listen to your body.

Mental health and emotional wellbeing

Heavy, long periods can make you feel tired, worried, or self-conscious. It's common to feel frustrated or anxious about symptoms. If you notice low mood, irritability, or you stop enjoying things you once loved, tell your doctor. They can offer support, including counselling. Looking after your mental health is just as important as managing your periods.

Prevention

You cannot always prevent long-lasting periods, especially if the cause is a medical condition. However, you can reduce your risk of complications by staying active, eating well, and keeping your health appointments. Treating conditions like thyroid problems or fibroids early can also help. For some people, certain types of hormonal contraception may make periods shorter and lighter, but this is not right for everyone.

Screening programmes

If you have symptoms, your doctor may recommend a pelvic ultrasound, cervical screening, or other tests. These checks are important because they can pick up problems like polyps or changes in the womb lining early. If you are over a certain age, you may be offered routine cervical screening as part of national programmes. Ask your doctor about what checks you need and how often.

Complications

If left untreated

• Iron-deficiency anaemia, which can leave you feeling constantly tired, pale, and breathless.
• Difficulty doing everyday activities because of pain, bleeding, or low energy.
• Missed work, school, or social events due to heavy periods.
• Worsening of the underlying condition, such as fibroids or endometriosis, over time.
• In rare cases, heavy bleeding can be a sign of a more serious condition that needs urgent treatment.

Long-term outlook

The outlook is positive for most people with long-lasting periods. The majority of causes are not serious, and treatment is often very successful. With the right care, your periods can become lighter, shorter, and more predictable. Even if an underlying condition is found, there are many options to help you feel better. Taking the first step and seeing a healthcare professional is the best thing you can do for your health.

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