Where Do Uterine Fibroids Grow?
You might already know that fibroids usually grow inside the uterus, but did you know they can also grow outside it? Uterine fibroids outside the uterus are not as common, but when they do occur, they can lead to different and sometimes more complex symptoms. Let’s break down the common types of uterine fibroids by their location:
Intramural Fibroids
These are the most common type of fibroids, found within the muscular wall of the uterus. As they grow, they can make the uterus feel larger and cause symptoms like heavy periods, pelvic pressure, and pain during intercourse.
Submucosal Fibroids
These fibroids grow just beneath the inner lining of the uterus. Because of their location, they are strongly associated with heavy menstrual bleeding and fertility issues. Even small submucosal fibroids can cause intense symptoms.
Subserosal Fibroids
Subserosal fibroids grow on the outer surface of the uterus. They often cause pelvic pain, pressure on nearby organs, and bloating, especially as they grow larger. These fibroids can sometimes form stalks (pedunculated fibroids), which increases the risk of severe pain.
Uterine Fibroids Outside The Uterus
Sometimes, fibroids develop beyond the uterus. These are typically subserosal fibroids that grow outward or parasitic fibroids that implant themselves in the pelvic or abdominal cavity. This is what we mean when we talk about uterine fibroids outside the uterus.
So, what causes fibroids to grow outside the uterus? In some cases, a subserosal fibroid grows so large that it detaches and develops its own blood supply. In other instances, fibroid tissue may be spread during certain surgical procedures, such as laparoscopic myomectomy, and later reattach elsewhere. These uterine fibroids can attach to:
- The outer uterine wall
- Ovaries
- Fallopian tubes
- Bladder or rectum
- Abdominal lining
Because these growths are located outside the uterus, their symptoms may differ from those of typical uterine fibroids. Common symptoms of uterine fibroids outside the uterus include:
- Unexplained pelvic pain or discomfort in the lower abdomen
- Urinary frequency or difficulty emptying the bladder
- Bowel irregularities like constipation or rectal pressure
- Pain during intercourse
- Feeling of fullness or bloating unrelated to digestion
- Visible or palpable abdominal masses
- Chronic fatigue from anemia due to subtle internal bleeding
Why The Location Of Uterine Fibroids Outside The Uterus Matters
Location isn’t just a technical detail but rather central to how fibroids affect your daily life and how we treat them. Uterine fibroids outside the uterus can behave differently and pose distinct challenges. Here’s why their location matters:
It Affects Symptoms
Fibroids inside the uterus may cause heavy bleeding and cramping. But fibroids outside the uterus often lead to digestive or urinary symptoms, which you might not immediately connect to gynecological health. This can delay diagnosis or result in a misdiagnosis.
For example, a fibroid pressing on the bladder may cause frequent urination, while one near the colon might mimic irritable bowel syndrome (IBS). The location influences which body systems are affected and the severity of your symptoms.
It Complicates Diagnosis
Uterine fibroids outside the uterus can be harder to detect with standard pelvic exams or routine ultrasounds. They may require MRI imaging or advanced diagnostic scans to properly locate and assess them.
Some women go years without an accurate diagnosis, attributing their discomfort to other conditions. That’s why seeing a fibroid specialist is essential. If you suspect something more than “normal bloating,” it’s time to contact us to schedule a consultation.
It Influences Treatment Options
Not all treatments are equally effective for fibroids outside the uterus. Some surgical options, like traditional fibroid removal, may miss smaller or hidden fibroids in the abdominal cavity.
Fortunately, uterine fibroid embolization (UFE) can treat both typical and some atypical fibroids by cutting off their blood supply, causing them to shrink and reduce in size over time. At Fibroid Pain Center, we specialize in using UFE as a minimally invasive, uterus-sparing solution, even when fibroids are located in unusual areas.
Take The Next Step Toward Relief
Don’t let confusing symptoms or delayed diagnoses keep you from the relief you deserve. Whether your fibroids are inside the uterus or you’ve been told you may have uterine fibroids outside the uterus, our experts can help.
At Fibroid Pain Center, we specialize in identifying and treating all types of fibroids using the latest, minimally invasive techniques, such as uterine fibroid embolization (UFE). Our team is here to support you with compassionate care and a focus on preserving your uterus. Learn about our fibroid center and get the answers you need today.
FAQs
Can Uterine Fibroids Really Grow Outside The Uterus?
Yes, they can. While most fibroids grow within the uterus, some may extend beyond the uterine wall and attach to nearby organs. These are known as subserosal fibroids. If you’ve had prior surgery or fibroid removal, the risk of fibroid growth outside the uterus may be slightly higher.
What Causes Fibroids To Grow Outside The Uterus?
In many cases, fibroids grow outward from the uterus naturally over time. However, fibroid tissue may also implant in other areas after surgeries like morcellation during laparoscopic myomectomy. Once attached to a new blood supply, they can continue to grow independently.
How Can You Tell If Fibroids Are Outside The Uterus?
You might notice symptoms unrelated to your menstrual cycle, such as bladder pressure, constipation, or abdominal bloating. Imaging tests, such as MRI or CT scans, are typically needed to confirm their location outside the uterus.
Are Fibroids Outside The Uterus More Dangerous?
Not necessarily, but they can be harder to diagnose and treat. Their location can lead to more unusual symptoms and may require treatment like uterine fibroid embolization (UFE). It’s important to consult a fibroid specialist for an accurate diagnosis and personalized care.
