Fibroids Bleeding Between Periods| Causes, Symptoms & When to See a Specialist
Fibroids bleeding between periods can be worrying for many women. In some cases, the cause may be uterine fibroids – non-cancerous growths that develop in or around the womb.
Bleeding when a period is not due worries most women. Fibroids bleeding between periods is one of the most common causes of unexpected spotting or bleeding that continues longer than expected.
Fibroids are very common and many women have them without realising. However, in some cases they can cause symptoms such as heavy periods, pelvic pressure, or unexpected bleeding between menstrual cycles.
Understanding why fibroids can cause bleeding between periods can help women recognise symptoms early and seek appropriate medical advice.
What are fibroids?
Fibroids are very common non-cancerous growths of the womb. According to the NHS, many women develop fibroids during their reproductive years, although some never experience symptoms.
They can vary greatly in size, from very small growths to larger fibroids that change the shape of the womb. Fibroids are most commonly diagnosed in women during their reproductive years and are influenced by hormones such as oestrogen and progesterone.
Some women have fibroids without experiencing symptoms, while others develop symptoms including heavy periods, pelvic pressure, or abnormal bleeding between cycles.
If symptoms occur, a specialist fibroid assessment can help determine the cause and identify the most appropriate treatment options.
Why Fibroids can cause bleeding between periods
Fibroids can interfere with the normal function of the uterus and disrupt the regular menstrual cycle.
Several factors contribute to irregular or intermenstrual bleeding.
* Disruption of the uterine lining
Fibroids located close to the lining of the womb (submucosal fibroids) can interfere with the normal growth and shedding of the uterine lining.
This can lead to small areas of the lining breaking down outside of the normal menstrual cycle, causing spotting or bleeding between periods.
* Increased blood supply
Fibroids require a strong blood supply in order to grow. They develop new blood vessels that can sometimes be fragile and prone to bleeding.
This increased blood flow can contribute to irregular bleeding patterns.
* Hormonal influences
Hormones such as oestrogen and progesterone regulate both the menstrual cycle and fibroid growth. When hormone levels fluctuate, fibroids may respond by enlarging slightly or affecting how the uterine lining behaves.
This can lead to unexpected bleeding during the menstrual cycle.
* Pressure effects
Larger fibroids may put pressure on surrounding areas of the uterus. This pressure can sometimes irritate the uterine lining and trigger bleeding at unusual times.
Symptoms that may occur alongside bleeding
Women who experience bleeding between periods due to fibroids may also notice other symptoms.
Common symptoms include:
• very heavy periods
• periods that last longer than usual
• pelvic pressure or a feeling of heaviness in the lower abdomen
• abdominal bloating or swelling
• pain during or after intercourse
• lower back pain
• fatigue caused by iron deficiency
Persistent or heavy bleeding can lead to iron-deficiency anaemia, which may cause tiredness, dizziness, or shortness of breath.
If these symptoms occur, a gynaecology consultation can help identify the cause and recommend appropriate investigations.
How are fibroids diagnosed?
Fibroids bleeding between periods should always be properly assessed, as several conditions can cause similar symptoms.
A specialist will usually begin by discussing symptoms and medical history before performing an examination. Imaging tests are then used to confirm the diagnosis.
A pelvic ultrasound scan is typically the first investigation used to identify fibroids and determine their size and location. In some cases, additional imaging or investigations may be recommended to gain a clearer picture of the uterus.
Blood tests may also be used to check hormone levels or identify iron deficiency caused by heavy bleeding.
Once fibroids are confirmed, a personalised treatment plan can be created depending on:
• the size and number of fibroids
• the severity of symptoms
• age and reproductive plans
Can fibroids cause bleeding between periods?
Yes. Fibroids can disrupt the normal uterine lining and lead to spotting or bleeding between menstrual cycles.
The lining of the uterus may become thicker or uneven due to the presence of fibroids. As the lining breaks down irregularly, bleeding may occur outside the normal period.
For some women this appears as light spotting, while others experience heavier bleeding that may last for several days.
The pattern may change over time depending on hormone levels or fibroid growth.
Can Fibroids Cause Mid-Cycle Bleeding?
Fibroids can sometimes cause mid-cycle bleeding, which occurs around the middle of the menstrual cycle.
Hormone fluctuations during ovulation can make the uterine lining more sensitive. Fibroids may amplify this effect, resulting in spotting or unexpected bleeding during this time.
The bleeding may last only a short time or continue for several days.
Treatment Options for Fibroids
Treatment for fibroids depends on several factors, including symptom severity and whether fertility preservation is important.
* Medication
Hormonal treatments such as progesterone therapy or intrauterine devices can help regulate the menstrual cycle and reduce heavy bleeding.
Certain medications may also help reduce blood loss during periods.
* Minimally invasive procedures
Some procedures can shrink fibroids by reducing their blood supply.
Other treatments focus on removing fibroids while preserving the uterus.
* Surgical options
In more severe cases, surgery may be recommended if symptoms significantly affect quality of life.
A specialist consultation helps determine which treatment approach is most suitable.
Women experiencing ongoing symptoms may benefit from discussing treatment options with a fibroid specialist.
When to Seek Medical Advice
Bleeding between periods should always be assessed if it becomes frequent, heavy or persistent.
You should seek medical advice if:
• bleeding occurs repeatedly between periods
• periods become very heavy or prolonged
• pelvic pain or pressure develops
• fatigue or dizziness occurs due to blood loss
Early assessment allows doctors to identify the cause of abnormal bleeding and begin appropriate treatment.
Specialist Fibroid Care at Ovara Health
At Ovara Health, our experienced gynaecology team provides comprehensive assessment and treatment for uterine fibroids.
Using advanced imaging and personalised care plans, we help women manage symptoms while protecting fertility wherever possible.
If you are experiencing bleeding between periods or symptoms related to fibroids, our specialists can help identify the cause and recommend appropriate treatment.
Book a consultation with our specialist team to discuss your symptoms and treatment options.
Frequently Asked Questions
Why fibroids bleeding between periods can happen
Fibroids can disrupt the uterine lining and lead to spotting or bleeding outside the normal menstrual cycle.
How are fibroids diagnosed?
Fibroids are typically diagnosed using pelvic ultrasound imaging and specialist examination.
When should bleeding between periods be checked?
Bleeding between periods should be assessed if it occurs frequently, becomes heavy, or is accompanied by other symptoms.
Can fibroids cause heavy bleeding?
Yes. Fibroids can cause both heavy periods and bleeding between cycles, particularly when they affect the uterine lining.