The Impact of Uterine Fibroids on IVF Success and Treatment Planning

If you’ve been told you have uterine fibroids, it’s completely normal to wonder how that might affect your IVF journey. These noncancerous growths are common among women of reproductive age, and while many don’t cause issues, others can interfere with fertility or treatment planning.

This article is designed to help you understand how fibroids may impact your IVF success, how they’re evaluated, and what treatment options may be recommended before moving forward. We’ll break things down in simple, clear terms so you can feel more confident about the decisions ahead. Whether you’re just starting to explore IVF or already preparing for treatment, understanding the role fibroids may play is an important step.

What Are Uterine Fibroids?

Uterine fibroids are noncancerous growths that develop in or around the uterus. They’re incredibly common, by age 50, up to 70% of women will have them, although not all will experience symptoms.

Types of Fibroids

• Intramural: Grow within the wall of the uterus
• Submucosal: Grow into the inner cavity of the uterus (more likely to affect fertility)
• Subserosal: Grow on the outer surface of the uterus
• Pedunculated: Attached to the uterus by a stalk-like structure

Common Symptoms (but not always present)

Some women may not notice any signs, while others may experience:

• Heavy or prolonged menstrual bleeding
• Pelvic pain or pressure
• Frequent urination
• Pain during intercourse
• Difficulty conceiving

While many fibroids are harmless and don’t interfere with pregnancy, their size, location, and number can sometimes impact reproductive health. This is especially relevant for women considering IVF. A thorough evaluation by our fertility team will help determine if treatment is needed before moving forward.

Can Fibroids Affect IVF Success?

Uterine fibroids don’t always get in the way of IVF, but when they do, it’s often due to location, size, or number.

Fibroids That May Interfere With IVF

• Submucosal fibroids: These are the most likely to disrupt implantation since they grow inside the uterine cavity, where embryos need to attach.
• Large intramural fibroids (especially over 4–5 cm): If they distort the uterine lining, they can also reduce the chance of implantation or increase miscarriage risk.
• Multiple fibroids: Even if smaller, they may impact blood flow or hormone balance in the uterus.

What the Research Shows

• Submucosal fibroids are associated with lower IVF success rates and should typically be removed before treatment.
• Intramural fibroids present a more complex picture. Some studies suggest reduced success rates, especially when the fibroids are large or distort the endometrial cavity.
• A study found that removal of submucosal fibroids improved clinical pregnancy rates, while results were mixed for intramural ones.

How Fibroids Are Detected Before IVF

Before beginning IVF, our fertility team takes steps to get a clear picture of your uterus. Fibroids are common, and many go unnoticed, until they interfere with fertility treatment. That’s why proper screening is essential.

Typical Diagnostic Tools

Here’s what fertility specialists use to check for fibroids:

• Transvaginal ultrasound: Often the first step, this helps identify the presence, size, and location of fibroids.
• Saline infusion sonography (SIS): This method provides more detail about whether a fibroid is pressing into the uterine cavity.
• Hysteroscopy: A thin camera is inserted through the cervix to look directly inside the uterus, which is ideal for evaluating submucosal fibroids.
• MRI scans: Occasionally used for more complex or multiple fibroids to map their exact location before surgery or IVF planning.

Why This Matters

Not all fibroids impact fertility, but identifying them early helps your care team tailor a treatment plan that avoids unnecessary IVF delays. For example, if a fibroid isn’t touching the uterine lining, IVF may proceed as planned. If it is, surgery might be recommended before starting stimulation.

A Closer Look at Timing

If removal is needed, your doctor may suggest waiting 1–2 menstrual cycles before beginning IVF to allow for full recovery. This small delay could make a significant difference in improving your chances of implantation and a healthy pregnancy.

Moving Forward With Clarity and Confidence

If you’ve been diagnosed with uterine fibroids and are considering IVF, take heart, as many women with fibroids go on to have healthy pregnancies with the right care and planning. The key is understanding how fibroids may impact your fertility journey and what can be done to support your success.

At First Fertility, our team takes a personalized approach to IVF, including thorough assessments to identify factors like fibroids early on. If treatment or surgical removal is recommended, we’ll help you understand your options and timing to ensure your IVF cycle is optimized.