Adenomyosis: Symptoms, Diagnosis and Treatment

The short answer: Adenomyosis is a condition where the lining of the womb grows into the muscle wall of the womb. That tissue still reacts to your monthly hormones, so the womb can become thicker, bulkier and tender. The main symptoms are heavy periods, very painful periods, pelvic pain or pressure, bloating and pain during or after sex, though some women have no symptoms at all. It is most often found in women over 35, especially after childbirth. An ultrasound or MRI scan helps diagnose it, and hormonal treatment, pain relief and medicines to reduce bleeding can control symptoms well.

What is adenomyosis?

Your womb (uterus) has two main layers. The inner lining, called the endometrium, thickens every month and sheds as your period. The outer layer is a thick wall of muscle, called the myometrium, which squeezes to push period blood out.

In adenomyosis, tissue from the lining grows into that muscle wall. The NHS describes it simply: the lining of the womb starts growing into the muscle in the wall of the womb. This misplaced tissue still responds to oestrogen and progesterone each month, so it swells and bleeds inside the muscle, where the blood has nowhere to go.

Over time the wall can thicken and the whole womb can enlarge. Cleveland Clinic notes the womb can sometimes grow to two or three times its usual size. That is why doctors often describe the womb as "bulky" on a scan report, a word many Indian women first see on an ultrasound printout without any explanation.

Is adenomyosis dangerous?

Adenomyosis is not cancer and does not cause cancer. It is not considered life-threatening. But the pain and bleeding can be severe enough to disrupt work, sleep, school runs and family life, and months of heavy bleeding can lead to anaemia. So it deserves proper attention.

Symptoms of adenomyosis

Symptoms vary a lot. Cleveland Clinic says about one in three people with adenomyosis have no symptoms, and the condition is only found during a scan for something else. When symptoms do appear, they tend to get worse over time until menopause.

Symptoms linked to your period

• Heavy periods: soaking through pads quickly, needing to change at night, or bleeding for longer than usual. Doctors call this menorrhagia, or heavy menstrual bleeding.
• Clots: heavy bleeding often comes with clots. Our guide to blood clots in your period explains which sizes are worth checking.
• Very painful periods: deep, cramping or stabbing pain that painkillers barely touch and that may stop you doing your usual activities.
• Periods that change: becoming heavier, longer or more painful than they used to be, often in your late 30s or 40s.

Symptoms at any time of the month

• Pelvic pain, or a dragging, heavy feeling low in the tummy
• Bloating, or a sense of fullness in the lower abdomen that doesn't go away
• Pain during or after sex, often felt deep inside
• Tiredness, breathlessness or feeling cold, which can be signs of anaemia from heavy bleeding

Painful periods caused by an underlying condition like this are called secondary dysmenorrhoea. If you want to understand the medical terms your doctor may use, read Dysmenorrhoea vs Menorrhagia: Painful Periods and Heavy Periods Explained.

Who gets adenomyosis, and why?

The exact cause is not known. Experts think hormones, inflammation, genes and injury to the inner wall of the womb may all play a part. What is clearer is who is more likely to have it.

• Age: the NHS says it usually affects women over 35, and Cleveland Clinic lists ages 40 to 50 as a risk factor. It is now being diagnosed more often in women in their 30s too, partly because scans have improved.
• Having given birth: it is more likely after at least one pregnancy.
• Previous surgery on the womb: such as a caesarean section, removal of fibroids, or a D&C (a procedure that scrapes the womb lining).
• Endometriosis: having endometriosis increases the chance of also having adenomyosis.

Adenomyosis can also affect younger women. Cleveland Clinic notes that about 2% to 5% of teenagers with severely painful periods have it. So "you are too young for that" is not a reason to skip a scan if a teenager's pain is extreme.

There is no known way to prevent adenomyosis. Nothing you ate, wore or did caused it, which is worth saying because blame often lands on women in Indian households for "weak" wombs or "heat" in the body.

Adenomyosis, endometriosis and fibroids: what's the difference?

These three conditions are often confused because they share symptoms: painful periods, heavy bleeding and pelvic pain. They can also occur together. The key difference is where the extra tissue is.

In endometriosis, tissue like the womb lining grows outside the womb, on the ovaries, fallopian tubes or pelvic lining. We cover it in detail in Endometriosis: Symptoms, Diagnosis and Treatment.

Fibroids are separate benign lumps, while adenomyosis is womb lining tissue inside the muscle itself. The NHS says fibroid risk is higher in women of Asian background, which matters in India. Because these conditions overlap, your doctor may find more than one on the same scan.

How adenomyosis is diagnosed

The NHS notes that getting a diagnosis can take a long time and several tests may be needed, partly because symptoms overlap with fibroids, endometriosis, polyps and endometrial hyperplasia (an overly thick womb lining). Here is what usually happens.

Talking about your symptoms

Your doctor will ask how heavy and painful your periods are, how long they last, whether they have changed, and whether you have pain during sex or between periods. Bring a simple record of two or three cycles: products changed each day, pain days and days missed at work or college.

Examination

A gynaecologist may press on your tummy and do an internal examination. The womb may feel enlarged, soft or tender. You can ask for a female doctor and bring someone you trust into the room.

Ultrasound scan

A pelvic ultrasound is usually the first scan. An internal (transvaginal) scan, where a slim probe is placed in the vagina, gives a clearer view of the womb wall than a scan over the tummy. It can show a thickened, uneven wall or a bulky womb.

MRI scan

If the ultrasound is unclear, or surgery is being considered, your doctor may suggest an MRI. It shows the layers of the womb in more detail and can help separate adenomyosis from fibroids.

Other tests

• A blood test for haemoglobin and iron, to check for anaemia
• Sometimes a biopsy, a small sample of the womb lining, to rule out more serious causes of bleeding

Treatment options

There is no single right treatment. The NHS says the choice depends on your symptoms, your age and whether you want to get pregnant. Many women need only medicines; surgery is kept for when these don't work.

Medicines first

For most women, the first step is a combination of pain relief and something to control bleeding. Your doctor may suggest a hormonal coil, which the NHS describes as a first-line option because it thins the lining and reduces both pain and heaviness. If you don't want a coil, hormonal pills or a patch are alternatives. Tranexamic acid is useful if you want to avoid hormones.

If medicines don't work

Your gynaecologist may discuss uterine artery embolisation or surgery. Hysterectomy, removing the womb, is the only permanent cure, but it is a big decision and ends the possibility of pregnancy. Ask about every option, the recovery time and what happens to your ovaries before agreeing to it. A second opinion is completely reasonable.

Self-care at home

• A hot water bottle or heat pad on your lower tummy
• A TENS machine, a small device that sends mild electrical pulses through the skin to ease pain
• Iron-rich foods such as dal, rajma, chana, palak and ragi, with amla, lemon or other vitamin C foods to help your body absorb iron

Symptoms usually settle after menopause, when oestrogen falls. If you are in your late 40s, your doctor may help you manage symptoms until then rather than rushing into surgery. Our guide to perimenopause explains how periods change in those years.

Adenomyosis and fertility

The NHS says adenomyosis can make it harder to get pregnant and can raise the risk of miscarriage. Cleveland Clinic adds that pregnancy may carry a higher risk of premature labour. Many women with adenomyosis do still conceive and have healthy pregnancies.

If you are trying for a baby, tell your gynaecologist early, because some treatments, such as the hormonal coil and the pill, also prevent pregnancy. Treatment can be planned around your timeline. Knowing your cycle helps too; Ovulation Explained covers the signs that you are ovulating.

Living with heavy, painful periods

While treatment starts working, which can take a few months, practical planning makes heavy days far less stressful.

Protection that keeps up

Many women with adenomyosis find a period panty helpful, because there is no pad to shift when you sit, bend or sleep. Fabpad period panties have one absorbency that suits every flow, from light to heavy, with a multi-layer core and a leak-resistant barrier, worn for up to 8 hours depending on flow. On your very heaviest days or nights, you can add a pad as backup. Styles differ only in coverage and fit; a high waist style gives more front-to-back coverage when you lie down.

For practical tips on changing frequency, nights and travel, read Heavy Periods: How Much Bleeding Is Too Much?

Watching for anaemia

Months of heavy bleeding can quietly drain your iron. Anaemia is already very common among Indian women, so ask for a haemoglobin test if you feel tired all the time, breathless on stairs, dizzy or pale. Your doctor may suggest iron tablets alongside diet changes.

At work and at home

Keep painkillers and a spare period panty or pad in your bag. On the worst days, ask family to share cooking or school pick-ups. Pain during sex is a real symptom too, so mention it to your doctor.

See a doctor if

• Your periods have become heavier, longer or more painful than before
• Painkillers no longer control your period pain, or you miss work, college or school because of it
• You have pain during or after sex
• Bloating or a feeling of fullness lasts about three weeks
• You bleed between periods or after sex
• You feel tired, breathless or dizzy, which may mean anaemia
• You have been trying to get pregnant without success

Get urgent help if

Call 112 or 108, or go to the nearest hospital emergency department, if:

• Your pelvic or period pain is severe, worse than usual, and painkillers haven't helped
• You soak through a pad or period panty every hour for two hours or more
• You feel faint, very dizzy or confused, or your heart is racing
• You are or could be pregnant and have heavy bleeding or severe pain

Frequently asked questions

Can adenomyosis go away on its own? It does not usually go away before menopause, and symptoms can worsen over time. After menopause, when hormone levels fall, symptoms usually settle.

What does a bulky uterus mean on my scan report? It means the womb looks larger than expected. Adenomyosis and fibroids are common reasons. Your gynaecologist will look at the full report and your symptoms to explain the cause.

Can I get pregnant with adenomyosis? Many women do. It can make conceiving harder and raises the risk of miscarriage, so tell your doctor if you are trying for a baby so treatment can be planned around it.

Does adenomyosis turn into cancer? No. Adenomyosis is not cancer and does not cause cancer. Your doctor may still test the lining if you have unusual bleeding, to rule out other causes.

Is hysterectomy the only treatment? No. Most women manage well with pain relief, tranexamic acid or hormonal treatment such as a hormonal coil. Hysterectomy is the only permanent cure and is usually considered when other treatments haven't helped.

Related reading

• Is My Period Pain Normal? How to Tell, and What Helps
• Heavy Periods: How Much Bleeding Is Too Much?
• How Periods Change in Your 30s and 40s
• Dysmenorrhoea vs Menorrhagia: Painful Periods and Heavy Periods Explained

This article is for general information and doesn't replace advice from your doctor.

Sources: NHS: Adenomyosis, Cleveland Clinic: Adenomyosis, NHS: Fibroids, NHS: Endometriosis, NHS: Heavy periods