Menorrhagia and dysmenorrhoea mean heavy menstrual bleeding and painful periods. Both are common, and both are usually treatable. Most women improve with tablets, hormonal treatment or a hormonal intrauterine system. Surgery is reserved for persistent symptoms or a structural cause such as fibroids. Menorrhagia and dysmenorrhoea are the medical terms for heavy menstrual bleeding and painful periods, two of the most common reasons women seek gynaecological advice in the UK. Together they can affect work, sleep, exercise, relationships and confidence, yet many women assume difficult periods are simply something to tolerate. In reality, there are usually identifiable causes and a wide range of effective treatment options, from simple tablets and hormonal treatments to minimally invasive surgery. Mr Saurabh Phadnis assesses women with these symptoms regularly and this article explains the causes, the tests involved and what treatment may realistically achieve.
Mr Saurabh Phadnis (MBBS, MRCOG) is a Consultant Gynaecologist and Gynaecological Oncology Surgeon in London, with subspecialty training completed at the Barts Gynaecological Cancer Centre. Alongside cancer care, he offers general gynaecology services including assessment and treatment for menorrhagia and dysmenorrhoea, hysteroscopy, colposcopy and minimally invasive surgery, working across both NHS and private practice in London.
Although they often occur together, the two terms describe different problems. Understanding which one predominates helps direct the assessment and the choice of treatment.
These problems are far from rare. Around 1 in 3 women describe their periods as heavy, and about 5% of women aged 30 to 49 consult their GP each year about heavy menstrual bleeding, as reflected in guidance from NICE. Period pain is also very common. The NHS notes that most women experience it at some point in their lives.
Rather than relying on a fixed measurement of blood loss, NICE defines heavy menstrual bleeding as excessive bleeding that interferes with a woman’s physical, emotional, social or material quality of life. In practice, that may mean:
Dysmenorrhoea means painful periods. Primary dysmenorrhoea usually begins within a few years of the first period, is caused by prostaglandin-driven uterine contractions and often improves with age or after childbirth. Secondary dysmenorrhoea develops later, tends to worsen over time and is linked to an underlying condition such as endometriosis, adenomyosis or fibroids. Pain that starts before bleeding, lasts beyond the period, or is associated with pain during sex or bowel movements is more suggestive of a secondary cause.
In a proportion of women no structural abnormality is found, and the diagnosis is one of heavy bleeding without identifiable pathology. In others, a clear cause emerges on examination or imaging. The causes of menorrhagia and dysmenorrhoea overlap considerably, which is why the two symptoms so often appear together.
The Royal College of Obstetricians and Gynaecologists notes that conditions such as endometriosis are frequently diagnosed late, partly because severe period pain is normalised. Persistent, cyclical pain that disrupts daily life deserves proper assessment rather than reassurance alone.
Endometriosis is common too. The NHS reports that it affects around 1 in 10 women of reproductive age in the UK.
Many women manage well with treatment from their GP, and that is often the sensible first step. Referral to a gynaecologist may be recommended if symptoms persist despite initial treatment, if imaging shows fibroids or ovarian cysts, or if there are features that need to be investigated in more detail.
Symptoms that should always prompt prompt medical review include:
These features do not usually indicate anything sinister, but they need to be assessed rather than assumed to be part of a difficult period pattern. Keeping cervical screening up to date remains important as well, and this overview of the changes to the cervical screening programme explains the current approach in England.
Assessment begins with a detailed conversation. Details such as cycle length, flow pattern, pain timing, contraceptive history, family history of bleeding disorders or cancer, and the impact on your daily routine all shape the diagnosis. An abdominal and pelvic examination is usually offered, particularly when pain or a possible fibroid is part of the picture.
Investigations are tailored to your age, symptoms and risk factors rather than applied routinely to everyone. They may include:
Treatment depends on the underlying cause, your age, whether you wish to conceive now or in the future, and which symptom troubles you most. Most women can start with medical treatment, and many find it sufficient. Surgery is generally reserved for those whose symptoms persist, who have significant structural causes, or who prefer a definitive approach after discussing the risks.
Options that may be recommended include:
As of 2026, this remains the guidance followed in UK practice. The NHS guidance on heavy periods confirms that several of these treatments work well without surgery, and that a period of trial and review is normal before deciding on the next step. Your clinician will discuss the likely benefits, side effects and contraceptive implications of each choice with you.
Where medication has not helped or a structural cause needs addressing, procedural options include:
A Cochrane review of treatments for heavy menstrual bleeding supports the effectiveness of both hormonal intrauterine systems and endometrial ablation, while noting that the right option varies with individual circumstances and preferences. Recovery times differ widely, from a day or two after outpatient hysteroscopy to several weeks after abdominal surgery.
Neither condition can reliably be prevented, but several practical measures may help alongside medical treatment. Tracking your cycle using an app or diary gives useful information at consultation. Regular exercise, adequate sleep and heat applied to the lower abdomen may ease cramping for some women. Ensuring a good dietary iron intake supports recovery from blood loss, though supplements should only be taken when a deficiency has been confirmed. Smoking cessation and maintaining a healthy weight support general gynaecological health, since body weight influences hormone balance and bleeding patterns.
Menorrhagia means bleeding that is heavy enough to affect your quality of life, while dysmenorrhoea means painful periods. They frequently coexist because conditions such as fibroids, adenomyosis and endometriosis can cause both. Assessment usually looks at bleeding and pain together to identify a shared underlying cause.
Usually not. Most cases relate to benign conditions such as fibroids, adenomyosis, endometriosis, hormonal changes or no identifiable abnormality at all. However, bleeding between periods, bleeding after sex, postmenopausal bleeding or a pelvic mass should always be investigated so that less common causes can be excluded.
Both are common. Around 1 in 3 women report heavy periods, and roughly 5% of women aged 30 to 49 see their GP each year about heavy bleeding. Endometriosis, a frequent cause of period pain, affects about 1 in 10 women of reproductive age.
Rarely as a first step. Most women improve with medication, a hormonal intrauterine system, or a targeted procedure such as polyp removal or endometrial ablation. Hysterectomy is generally considered only when other treatments have not worked, are unsuitable, or when a woman chooses it after full discussion of the risks.
Many treatments preserve fertility, including myomectomy and laparoscopic treatment of endometriosis, although hormonal options prevent pregnancy while in use. Endometrial ablation and hysterectomy are not suitable if you hope to conceive. Always tell your clinician about your future plans before treatment is chosen.
