Fibroids are very common, but that does not mean they always feel minor. For some women, they are found by chance and cause no real trouble at all. For others, they quietly take over everyday life through heavy periods, pelvic pressure, bloating, needing the toilet more often, tiredness from blood loss, or the sense that their body no longer feels comfortable or predictable.
One of the problems with fibroids is that symptoms often build gradually. A woman may adjust without fully noticing how much her life has narrowed. She starts carrying extra period products everywhere, planning around toilet access, wearing looser clothes because of abdominal pressure, or assuming her exhaustion is just stress when she may actually be becoming iron deficient from heavy bleeding. Because the changes happen slowly, help is often sought later than it should be.
This guide explains what fibroids are, what symptoms they can cause, how they are investigated in the UK, what treatments are available through the NHS and private care, and when bleeding or pain should not be ignored. It is written to be practical, readable and relevant to real life, not just a list of medical terms.
If you want wider context first, see our guides to Women’s Health: Symptoms, Common Conditions, Tests and Treatment Options in the UK, Heavy Periods: Causes, Tests and Treatment Options in the UK and Endometriosis: Symptoms, Diagnosis and Treatment in the UK.
What are fibroids?
Fibroids are non-cancerous growths made of muscle and fibrous tissue that develop in or around the womb. They are sometimes called uterine fibroids or leiomyomas. Some are very small and never cause symptoms. Others become large enough to affect bleeding, pressure, pain, fertility or the size and shape of the womb.
A diagnosis of fibroids can sound frightening at first, especially if you discover them while already dealing with heavy periods or pelvic discomfort. But fibroids are not the same thing as cancer, and many never need active treatment. The real question is not simply whether fibroids are present, but whether they are causing symptoms and how much those symptoms are affecting your life.
What do fibroids feel like in real life?
There is no single fibroid story. One woman may mainly notice very heavy periods and tiredness. Another may feel pressure in the lower abdomen, as if something is taking up space. Another may need to pass urine more often because a fibroid is pressing on the bladder. Some women notice pain, while others feel more discomfort, heaviness or fullness than outright pain.
Fibroids can also be discovered when somebody seeks help for trouble getting pregnant, repeated miscarriage, or a visibly enlarged abdomen that they first assumed was weight gain or bloating. The effect depends on the size of the fibroids, how many there are, and where they sit in relation to the lining and muscle of the womb.
Common symptoms of fibroids
Fibroids do not always cause symptoms, but when they do, common problems include:
- Heavy periods
- Periods that last longer than usual
- Pelvic pressure or heaviness
- Lower abdominal swelling or fullness
- Pelvic pain or cramping
- Lower back pain
- Needing to urinate more often
- Constipation or pressure on the bowel
- Pain during sex in some cases
- Difficulty getting pregnant or pregnancy-related complications in some women
Not every fibroid causes every symptom. Some women have large fibroids and surprisingly few problems. Others have smaller fibroids in positions that cause major bleeding or fertility concerns.
Why do fibroids often cause heavy periods?
Fibroids can increase bleeding for a few reasons. Some affect the shape of the womb lining, some increase the surface area of the lining, and some interfere with the way the womb contracts to control bleeding. The result can be periods that are much harder to manage, with flooding, clots, prolonged bleeding, and the constant feeling that the period is running your month instead of simply being part of it.
A common example is someone who says, “My period now feels like two separate jobs: managing the pain and managing the bleeding.” That is exactly the kind of impact that deserves assessment rather than quiet endurance.
Do all fibroids need treatment?
No. Many fibroids do not need treatment at all, especially if they are not causing symptoms. Some are only monitored, and some shrink after menopause as hormone levels fall. Treatment is usually considered when fibroids are causing heavy bleeding, pain, pressure symptoms, fertility problems, or a noticeable effect on daily life.
This is important because it prevents two extremes: ignoring fibroids that are clearly affecting health, and over-treating fibroids that are harmless and incidental.
What causes fibroids?
The exact cause is not fully understood, but fibroids are linked to hormones, especially oestrogen and progesterone, which help explain why they often grow during the reproductive years and may shrink after menopause. Genetics also seem to play a part, and fibroids often run in families.
There are also known differences in who is affected. Some women are more likely to develop fibroids, and some groups are more likely to develop them earlier or have more severe symptoms. That does not change the basics of treatment, but it is one reason clinicians should listen carefully when symptoms suggest fibroids rather than dismissing heavy bleeding as routine.
When should you see a GP?
You should arrange an appointment if you have heavy periods, prolonged bleeding, pelvic pressure, a noticeable increase in abdominal size, urinary pressure symptoms, or pain that keeps coming back. It is especially worth getting checked if you are also feeling tired, dizzy or short of breath, because heavy bleeding can lead to iron deficiency anaemia.
It also makes sense to seek advice if you are having fertility difficulties, repeated miscarriage, or you have been told you have fibroids in the past and your symptoms are getting worse.
When are symptoms urgent?
Fibroids are usually managed through routine care, but you should seek urgent medical advice if:
- you are bleeding so heavily that you feel faint, weak or breathless
- you have severe pain that feels sudden or different from usual
- you are pregnant and have significant bleeding or pain
- you are passing large amounts of blood and cannot keep on top of it
Urgent symptoms do not always mean fibroids are the only cause. That is why prompt assessment matters.
How are fibroids diagnosed in the UK?
Diagnosis usually begins with a symptom history. A GP or specialist will often ask about bleeding patterns, clots, pain, pressure, bladder symptoms, bowel symptoms, fertility wishes and how much symptoms affect daily life. That quality-of-life part matters. In women’s health, a symptom does not need to be dramatic in hospital terms to be seriously disruptive in real life.
Pelvic examination
If symptoms suggest fibroids, a clinician may offer an examination. Sometimes a larger or irregularly shaped womb can be felt on examination, though this depends on the size and position of any fibroids.
Ultrasound scan
A pelvic ultrasound is one of the most common ways fibroids are identified. It can help show how many fibroids there are, how large they are, and where they are located. In some cases a transvaginal ultrasound gives a clearer picture than an abdominal scan.
Blood tests
Blood tests are often used to check for anaemia if heavy bleeding is part of the problem. This is important because some women adapt to feeling exhausted without realising their iron levels may be low.
Hysteroscopy or MRI
Some women are referred for a hysteroscopy, especially if bleeding patterns suggest something affecting the lining of the womb. MRI may be used in more complex cases, especially if surgery or a non-surgical fibroid procedure is being considered.
Where fibroids are positioned matters
Fibroids are not all the same. Some grow within the muscle of the womb, some bulge into the cavity of the womb, and some grow outward. That matters because the location often affects the symptom pattern. Fibroids pushing into the womb cavity are more likely to cause heavy bleeding. Larger fibroids growing outward may cause more pressure on the bladder or bowel. This is one reason two women with “fibroids” can have very different experiences.
What treatments are available?
Treatment depends on the size, number and position of the fibroids, how severe symptoms are, whether fertility matters now or in the future, and whether you want to avoid surgery if possible. There is no single best treatment for everyone.
1. Watchful waiting
If fibroids are small and not causing much trouble, treatment may not be needed straight away. Monitoring symptoms may be enough, particularly if menopause is approaching and symptoms are manageable.
2. Medicines for heavy bleeding and pain
If fibroids are causing heavy periods, medicines may be used to reduce bleeding or help with period pain. Depending on the situation, this may include anti-inflammatory pain relief, tranexamic acid, or hormonal treatment such as the combined pill or another hormone-based option. These treatments do not remove fibroids, but they can make symptoms much easier to live with.
3. Hormonal coil
For some women, a hormonal coil can help reduce heavy bleeding. This may be more suitable when fibroids are smaller and do not significantly distort the womb cavity. It is often discussed as a practical option when bleeding is the main problem.
4. Medicines to shrink fibroids temporarily
Some medicines may be used to shrink fibroids for a period of time, especially before surgery or when symptoms are severe. These are not always long-term solutions, but they can be useful in selected cases.
5. Uterine artery embolisation
Uterine artery embolisation, often shortened to UAE, is a non-surgical procedure that reduces the blood supply to fibroids so they shrink. It can be a good option for some women who want to avoid major surgery, though it is not right for everyone and fertility plans need careful discussion first.
6. Myomectomy
A myomectomy is surgery to remove fibroids while keeping the womb. This may be particularly important for women who want to preserve fertility or avoid hysterectomy. The exact surgical approach depends on the size and position of the fibroids.
7. Hysterectomy
A hysterectomy removes the womb and is the most definitive treatment for fibroids. It is usually considered when symptoms are severe, other treatments have not helped enough, and future pregnancy is not wanted. It can be life-changingly effective for some women, but it is a major decision and should be approached carefully.
8. Endometrial ablation
In selected women whose main problem is heavy bleeding, endometrial ablation may be discussed. This treats the womb lining rather than removing fibroids directly, so suitability depends on the fibroids’ size and location and whether future pregnancy is desired.
What if fertility matters?
This is one of the most important parts of fibroid treatment planning. Some fibroids are unlikely to affect fertility at all. Others can make conception, implantation or pregnancy more difficult depending on where they are. If you want to become pregnant now or in future, say that clearly early in the discussion. It changes which treatments are most appropriate.
A woman in her late 30s with heavy bleeding who has completed her family may make very different choices from a woman in her early 30s hoping to conceive. Neither approach is more “correct”. The right plan depends on your priorities.
Can fibroids shrink after menopause?
Yes, they often do. Because fibroids are hormone-sensitive, they commonly shrink after menopause. That is one reason treatment decisions may be different for a woman close to menopause than for someone much younger with years of symptoms ahead of her. But “they may shrink later” is not a good enough answer if symptoms are already making life difficult now.
What problems can happen if fibroids are ignored?
The biggest practical problem is usually ongoing heavy bleeding and the consequences of it. That can include iron deficiency anaemia, fatigue, dizziness, headaches, shortness of breath and reduced quality of life. Pressure symptoms can also become more intrusive over time, affecting urination, bowel habits, comfort during exercise, clothing choices and sleep.
There is also the emotional side. Women often feel worn down by having to explain why they are tired, why they avoid certain plans, or why intimacy feels uncomfortable. A symptom does not need to be dangerous to be deeply disruptive.
What to avoid
There are several common mistakes that make fibroids harder to live with:
- assuming that because heavy periods are common, nothing can be done
- ignoring symptoms of anaemia such as fatigue or breathlessness
- putting up with pressure symptoms for years without review
- focusing only on bleeding and not mentioning bladder, bowel or fertility symptoms
- assuming all fibroids automatically need surgery
- assuming no treatment is possible if you want to keep your womb
Another thing to avoid is under-describing the impact. “My periods are heavy” matters, but “I have to wake at night to change products and I am exhausted for days afterwards” tells the story much more clearly.
How to prepare for a GP or specialist appointment
Before the appointment, it can help to note:
- how long bleeding lasts
- whether you pass clots
- how often you change pads or tampons
- whether you feel pressure, bloating or pain
- whether you urinate more often
- whether you feel tired or dizzy
- whether fertility matters now or later
- what you have already tried
That makes it easier to describe the full picture quickly and helps the clinician decide which tests or treatments make most sense.
NHS or private care?
Many women begin with an NHS GP and that is often the right place to start. Blood tests, initial imaging and first-line treatment can often begin there. Some women choose private care for faster scanning or specialist discussion, especially when symptoms are affecting work or fertility planning. In practice, some use both systems at different points.
The important thing is not which system you use first, but that the symptoms are taken seriously and that treatment decisions are based on your symptoms, your priorities and your plans for the future.
External resources
For additional evidence-based information, see the NHS overview of fibroids, the NHS guide to fibroid treatment, and the NICE guideline on heavy menstrual bleeding. If uterine artery embolisation is being discussed, the RCOG guidance on uterine artery embolisation is also useful.
Key takeaway
Fibroids are common non-cancerous growths in or around the womb. Many cause no symptoms, but some lead to heavy bleeding, pelvic pressure, pain, bladder or bowel symptoms, and fertility concerns. In the UK, assessment often includes a history, blood tests and ultrasound, with further tests in selected cases. Treatment can range from monitoring and medicines to uterine artery embolisation, myomectomy or hysterectomy depending on symptoms and future pregnancy plans.
If heavy periods, pressure or exhaustion are becoming part of your “normal”, it is worth asking whether fibroids could be part of the reason. You do not have to wait until symptoms become unbearable before seeking help.
