Yes, having uterine fibroids does not automatically prevent you from having an abortion or using abortion pills. Many people with fibroids can have a medication abortion with mifepristone and misoprostol.
However, the size, number, and location of your fibroids can matter. Large fibroids or fibroids that significantly change the shape of the uterine cavity may affect bleeding, cramping, or how easily pregnancy tissue passes. In these situations, a healthcare provider may recommend additional evaluation before deciding whether abortion pills or an in-clinic procedure is the better option.
At Serenity Choice Health, we review your medical history and known fibroid diagnosis so your abortion care can be planned safely and appropriately.
Can Abortion Pills Work If I Have Fibroids?
In most cases, fibroids do not stop abortion pills from working.
Medication abortion commonly uses two medicines:
- Mifepristone, which blocks progesterone and stops the pregnancy from continuing
- Misoprostol, which causes the uterus to contract and empty
Research has documented successful medication abortion in people with uterine fibroids, including some patients with large fibroids. However, evidence specifically involving very large or cavity-distorting fibroids is more limited than the evidence for medication abortion overall.
Because of that, it is better not to assume that every person with fibroids will have exactly the same experience.
If you want to understand the general process, read our guide to the medication abortion process.
Do Fibroids Make Abortion Pill Bleeding Heavier?
They can.
Fibroids themselves may cause heavy or prolonged menstrual bleeding, so someone who already has heavy periods because of fibroids may experience more bleeding during a medication abortion.
Bleeding and cramping are expected after misoprostol because the uterus is contracting and emptying. Your individual experience may depend on:
- The size of your fibroids
- Where the fibroids are located
- Whether they distort the uterine cavity
- How heavily you normally bleed during your periods
- How far along the pregnancy is
- Your overall medical history
Having fibroids does not mean that dangerous bleeding will occur, but your provider should know if you have a history of very heavy periods, anemia, previous blood transfusions, or unusually large fibroids.
Learn more about heavy bleeding during a medication abortion and the warning signs after an abortion that require medical attention.
Do Fibroids Make Misoprostol Cramps Worse?
They may for some people, but the experience varies.
Misoprostol causes uterine contractions, which are responsible for much of the cramping experienced during a medication abortion. Fibroids can also cause pelvic pain or pressure on their own.
The size and location of a fibroid may therefore influence how cramping feels, although having fibroids does not necessarily mean you will experience severe pain.
Your healthcare provider can discuss appropriate pain-management options based on your medical history.
You can also read more about how much pain the abortion pill can cause.
What If I Have Large Fibroids?
This is where individual evaluation becomes more important.
A very large fibroid, or one that significantly distorts the uterine cavity or obstructs the lower uterus, can make medication abortion more complicated in some cases.
Your healthcare provider may want to know:
- How large the fibroid is
- Whether you have one or several fibroids
- Whether it is intramural, submucosal, or subserosal
- Whether the uterine cavity is distorted
- Whether you have significant anemia
- Whether previous ultrasounds showed unusual uterine anatomy
An ultrasound is not required for every medication abortion, but certain situations—including significant uterine distortion from fibroids—may make imaging particularly useful.
If medication abortion is not the best option for your circumstances, your provider can discuss whether an in-clinic procedure would be more appropriate. See our comparison of in-clinic abortion vs. the abortion pill.
Can Abortions Cause Fibroids?
There is not enough evidence to say that having an abortion directly causes uterine fibroids.
Fibroids are hormone-responsive, noncancerous growths of the muscle and connective tissue of the uterus. Their development is influenced by several factors, including age, hormones, genetics, family history, and other biological factors.
Some observational studies have examined associations between previous abortions and later fibroid diagnosis, but an association does not establish that abortion caused the fibroids. Fibroids are also extremely common and may exist without symptoms for years before they are discovered.
So statements such as “abortions cause fibroids” or “abortion pills cause uterine fibroids” are not supported as established medical facts.
What About Mifepristone for Fibroids?
This can be confusing because mifepristone has also been studied as a treatment for uterine fibroids.
Some clinical studies have investigated repeated, lower-dose mifepristone regimens for reducing fibroid symptoms or fibroid size.
That is different from using mifepristone for medication abortion.
The dose, duration, purpose, and treatment plan are different, so taking mifepristone as part of an abortion should not be considered treatment for your fibroids.
What About Misoprostol for Fibroids?
Misoprostol is not a standard medicine used to shrink or eliminate uterine fibroids.
During medication abortion, misoprostol is used because it causes the uterus to contract and helps empty the pregnancy.
If you have seen information online about misoprostol for fibroids, do not use misoprostol on your own to try to treat fibroids. Fibroid treatment depends on symptoms, size, location, fertility goals, and other health factors.
Do I Need an Ultrasound Before an Abortion If I Have Fibroids?
Not everyone needs an ultrasound before using abortion pills.
However, if you already know that you have large fibroids, significant distortion of the uterus, uncertain pregnancy dating, severe pelvic symptoms, or another condition that could complicate care, your provider may recommend imaging.
An ultrasound may help determine:
- Pregnancy location
- Gestational age
- Fibroid size
- Fibroid location
- Whether the uterine cavity is significantly distorted
This information can help your provider determine the safest and most appropriate abortion method.
When Should I Seek Medical Help?
Contact a healthcare professional promptly if you are concerned about your symptoms after taking abortion pills.
Seek urgent medical attention for symptoms such as extremely heavy bleeding, fainting or severe weakness, severe or worsening pain that is not improving, or other symptoms your clinician has told you require emergency evaluation.
Because bleeding patterns vary from person to person, particularly when fibroids are present, follow the instructions provided by your healthcare team.
Read more about signs to go to the emergency room after taking abortion pills.
Can I Use Telehealth Abortion Care If I Have Fibroids?
Possibly.
Having fibroids does not automatically mean you cannot receive abortion care through telehealth. Your provider will review your medical history and determine whether additional testing or an in-person evaluation is necessary.
If your fibroids are small, do not significantly distort your uterus, and are not causing major medical problems, they may not change your abortion plan.
If your fibroids are unusually large or your history suggests that imaging would be useful, your provider may recommend an ultrasound or in-person evaluation first.
Learn more about telehealth abortion care and how telehealth providers evaluate patients for abortion pills.
The Bottom Line: Can I Have an Abortion With Fibroids?
In many cases, yes. You can have an abortion if you have fibroids, and fibroids do not automatically prevent abortion pills from working.
What matters most is the size and location of the fibroids, whether they significantly distort the uterus, your normal bleeding pattern, pregnancy duration, and your overall medical history.
If you know you have fibroids, tell your abortion provider before treatment. This allows your care team to determine whether medication abortion is appropriate or whether additional evaluation would make your care safer.
At Serenity Choice Health, we provide confidential, individualized abortion care and can review your history before recommending the most appropriate option.
Contact our medical team or schedule a confidential appointment to discuss abortion care if you have uterine fibroids.
Dr. James Carter is a board-certified physician and lead clinician at Serenity Choice Health, specializing in reproductive health access and medication abortion protocols. With over 20+ years of experience, he combines clinical expertise with patient-centered care to ensure safe, compassionate, and confidential reproductive healthcare.
