Adenomyosis can be painful, disruptive and easy to confuse with other conditions
Adenomyosis can cause heavy or painful periods, pelvic pain, bloating and pain during sex. Some people have no symptoms at all. Because the symptoms can overlap with conditions such as endometriosis and fibroids, getting the right assessment matters.
What is adenomyosis?
Adenomyosis is a condition in which tissue from the lining of the womb grows into the muscle of the womb wall. The NHS notes that it is more commonly diagnosed in women over 30, although it can affect anyone who has periods.
Symptoms can include severe period pain, heavy bleeding, pelvic pain, a feeling of heaviness or fullness in the abdomen, bloating and pain during sex.
Adenomyosis vs endometriosis: what’s the difference?
Adenomyosis
Tissue from the womb lining grows into the muscular wall of the womb. Ultrasound or MRI may be used when further investigation is needed.
Endometriosis
Tissue similar to the lining of the womb is found elsewhere, for example around the ovaries, fallopian tubes or pelvis. Current NICE guidance uses ultrasound and, where appropriate, MRI as part of diagnosis; laparoscopy can still be considered even when imaging is normal, but it is not accurate to say every diagnosis requires surgery.
The two conditions can occur together, and symptoms alone cannot always distinguish one from the other.
When to seek medical advice
See a GP if your periods become more painful, heavier or irregular, if you have pain during sex, persistent bloating, bleeding between periods or after sex, or heavy periods that are affecting your life.
The NHS advises urgent assessment if pelvic or period pain is severe or worse than usual and painkillers have not helped.
What is “adenomyosis belly” or “adenobelly”?
“Adenomyosis belly” or “adenobelly” is an informal term people use for abdominal bloating, swelling or a feeling of fullness associated with adenomyosis. It is not a separate medical diagnosis.
Adenomyosis can cause bloating and a heavy or full feeling in the lower abdomen, but persistent abdominal swelling can have many causes. If bloating is new, severe, persistent or accompanied by other concerning symptoms, speak to a healthcare professional rather than assuming adenomyosis is responsible.
Can adenomyosis cause bloating or constipation?
Bloating can occur with adenomyosis. Constipation may also happen alongside pelvic pain or other gynaecological and bowel conditions, but constipation is not specific enough to diagnose adenomyosis. A clinician can help distinguish overlapping causes.
How adenomyosis is treated
Treatment depends on your symptoms, preferences and whether you want to become pregnant. NHS options include:
- A hormonal IUS, such as Mirena, to make periods lighter and less painful.
- Other hormonal contraception, including the progestogen-only pill, combined pill or patch.
- Medicines such as tranexamic acid or NSAIDs for bleeding or pain.
- Surgery if other treatments do not work. This may include hysterectomy or endometrial ablation in selected cases.
A hysterectomy is a major operation and is not the automatic next step for everyone with adenomyosis.
What about diet and supplements?
A balanced diet can support general health, and if heavy bleeding has caused iron deficiency or anaemia, a clinician may recommend dietary changes or iron treatment. But there is no established “adenomyosis diet” that has been shown to cure the condition, balance hormones or reliably control symptoms.
Claims that everyone with adenomyosis should avoid dairy, red meat, caffeine or particular foods are stronger than the evidence supports. Likewise, supplements such as magnesium or omega-3 should not be presented as treatments for adenomyosis without individual advice.
If heavy periods are leaving you unusually tired, breathless or weak, ask about iron deficiency rather than assuming food alone will correct it.
Things that may help with pain
Heat
The NHS recommends a heat pad or hot water bottle wrapped in a tea towel for period or pelvic pain.
TENS
A TENS machine is another NHS-listed option that some people use for pain relief.
Pain relief
Paracetamol or ibuprofen may help some people, provided they are suitable for you. Ask a pharmacist or clinician if you are unsure.
Keep a symptom record
Tracking pain, bleeding and cycle changes can make it easier to explain what is happening at a GP or gynaecology appointment.
Final thoughts
Adenomyosis is not something you should have to dismiss as “just bad periods”. If heavy bleeding, chronic pain or bloating is affecting your life, ask for medical advice and keep asking if symptoms are not being addressed.
You can also explore our endometriosis support collection and period pain relief collection, while remembering that products sold for comfort or wellbeing are not substitutes for diagnosis or treatment.
Sources
NHS: Adenomyosis
NICE NG73: Endometriosis diagnosis and management
