Uterine Fibroids and Heart Disease Risk: What Women Should Know

Uterine Fibroids and Heart Disease Risk: What Women Should Know

Uterine fibroids and heart disease risk are now being recognized as closely linked health concerns for women. A growing body of clinical evidence shows that women with uterine fibroids may face a significantly higher risk of developing heart disease later in life. Uterine fibroids, also known as leiomyomas, are benign growths in the uterus that affect millions of women worldwide. Heart disease remains the leading cause of death among women globally, and understanding this connection can help improve prevention and early detection efforts.

Recent studies, including a large-scale investigation of more than 2.7 million women, revealed that women diagnosed with fibroids had over an 80% higher long-term risk of developing atherosclerotic cardiovascular disease (ASCVD) compared to women without fibroids. This finding underscores the need for women’s heart health initiatives to consider fibroid status in cardiovascular risk assessments.

Understanding Uterine Fibroids and Their Prevalence

Uterine fibroids are noncancerous tumors that grow from the muscle wall of the uterus. They can vary in size, number, and location, often developing during reproductive years. According to the U.S. Office on Women’s Health, up to 80% of women will have fibroids by age 50, although many remain unaware due to the absence of symptoms. Common symptoms include heavy menstrual bleeding, pelvic pain, and pressure on nearby organs. In many cases, fibroids are detected during routine pelvic exams or imaging studies.

Fibroids are influenced by hormonal factors, especially estrogen and progesterone, and they tend to shrink after menopause. However, despite being benign, their presence has been associated with metabolic and cardiovascular changes that are now under increased scientific scrutiny.

What Research Reveals About Uterine Fibroids and Heart Disease Risk

A study published in the Journal of the American Heart Association analyzed health data from women between 2000 and 2022 to examine the link between uterine fibroids and cardiovascular disease. The study found that women with fibroids had an 81% higher likelihood of developing major cardiovascular events, including coronary artery disease, stroke, and peripheral artery disease. This elevated risk persisted for up to 10 years after diagnosis.

Key Findings from Clinical Studies

• After a decade, 5.4% of women with fibroids experienced a cardiovascular event compared with 3% of those without fibroids.

• Younger women under age 40 showed the greatest relative risk, with a 251% higher likelihood of developing heart disease.

• The association was consistent across racial and ethnic groups, with slightly stronger effects seen in Asian and Black women.

• The adjusted 10-year relative risk (aRR) was 1.81, meaning fibroid patients faced nearly double the risk of heart disease even after controlling for other variables.

These findings suggest that uterine fibroids may serve as an early marker for identifying women at higher cardiovascular risk and warrant consideration in preventive cardiology strategies.

Biological Mechanisms Linking Fibroids to Cardiovascular Disease

Researchers believe that fibroids and heart disease share several biological pathways. Both conditions involve abnormal growth of smooth muscle tissue, chronic inflammation, and alterations in the body’s response to hormones and cytokines.

Shared Pathways and Inflammation

Fibroids and heart disease are both influenced by inflammatory molecules like interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α). Persistent inflammation can cause oxidative stress and damage to the blood vessels, promoting atherosclerosis. It can also drive the excessive buildup of connective tissue, contributing to vascular stiffness and hypertension.

Hormonal and Vascular Effects

Estrogen and progesterone imbalances, which play a role in fibroid growth, may also affect cardiovascular function by altering lipid metabolism and promoting vascular smooth muscle proliferation. Over time, these hormonal effects may contribute to arterial plaque buildup and increased atherosclerotic burden.

Does Fibroid-Related Anemia Affect Heart Health?

Heavy menstrual bleeding is a hallmark symptom of many fibroid cases, and it often leads to iron deficiency anemia. Anemia causes the heart to work harder to deliver oxygen to tissues, increasing heart rate and strain. Over time, this can lead to left ventricular hypertrophy, arrhythmias, or heart failure.

The Centers for Disease Control and Prevention (CDC) estimates that iron deficiency anemia affects up to one in five reproductive-age women. In those with fibroids, prolonged blood loss can exacerbate cardiac stress, making early identification and correction of anemia an essential part of preventive heart care.

The Two-Way Connection Between Fibroids and High Blood Pressure

Hypertension, or high blood pressure, is a well-known risk factor for heart disease, and studies suggest that it may also promote fibroid growth. Women with fibroids are roughly 2.3 times more likely to develop hypertension compared to those without fibroids. Elevated blood pressure can further aggravate vascular inflammation and arterial stiffness, reinforcing the fibroid–heart disease link.

Identifying and managing hypertension early is therefore a critical step in reducing long-term cardiovascular risk among women with fibroids.

Who Is Most at Risk? Insights by Age and Ethnicity

Research shows that the fibroid–heart disease connection may be particularly strong in specific demographic groups. Younger women under 40, as well as women of Black and Asian descent, show higher relative cardiovascular risk linked to fibroid diagnosis. Factors such as genetic predisposition, hormonal activity, and access to care may explain some of these disparities.

Women approaching perimenopause may also experience compounded risks due to hormonal changes, weight fluctuations, and rising blood pressure. These overlapping factors highlight the importance of integrating gynecologic and cardiovascular care for middle-aged women.

Preventing and Managing Heart Disease Risk in Women with Fibroids

Although more studies are needed to confirm the exact relationship between fibroids and heart disease, current evidence supports a proactive approach to women’s heart health. Medical professionals recommend a combination of screening, lifestyle management, and tailored treatment for those diagnosed with fibroids.

Recommended Steps for Women with Fibroids

1. Monitor Blood Pressure: Regularly check blood pressure and address hypertension early with dietary changes, exercise, or medication.

2. Address Iron Deficiency: Prevent or treat anemia through iron supplementation and, when appropriate, fibroid management procedures such as myomectomy or uterine artery embolization.

3. Adopt a Heart-Healthy Lifestyle: Follow a Mediterranean-style diet rich in fruits, vegetables, whole grains, and lean proteins to reduce atherosclerotic cardiovascular disease risk.

4. Stay Physically Active: Engage in at least 150 minutes of moderate aerobic activity weekly to lower cardio-metabolic risk.

5. Coordinate Care Across Specialties: Encourage collaboration between gynecologists, cardiologists, and primary care providers for comprehensive women’s heart health management.

Should Fibroid Status Be Included in Heart Disease Risk Models?

The emerging evidence raises an important question: should uterine fibroid history be part of cardiovascular risk assessments? While current guidelines for ASCVD risk prediction do not incorporate female-specific reproductive conditions, recent studies advocate for their inclusion. Conditions such as preeclampsia, premature menopause, and polycystic ovary syndrome already have established ties to cardiovascular disease. Adding fibroid status could enhance the precision of risk prediction models and support more personalized preventive care.

What Future Research Needs to Uncover

Researchers recommend further studies to explore how fibroid characteristics such as size, location, and treatment outcomes influence heart health. Investigations into inflammatory and hormonal pathways could reveal how both diseases originate and interact. Understanding whether fibroid treatment lowers cardiovascular risk is another important direction for future research.

As lead researcher Julia D. DiTosto from the University of Pennsylvania emphasized, fibroids may represent an important marker for identifying women at higher cardiovascular risk. Understanding the underlying biology could help reshape both gynecologic and cardiologic care.

Empowering Women Through Awareness and Prevention

Beyond scientific discovery, these findings carry a strong message of empowerment and awareness. Women should feel encouraged to discuss heart health with their gynecologists, especially if diagnosed with fibroids. Annual well-woman exams provide a valuable opportunity to address cardiovascular risk factors such as high blood pressure, cholesterol levels, blood sugar, and lifestyle habits.

Organizations like the American Heart Association have called for greater collaboration between women’s health specialists and cardiology professionals to ensure an integrated approach to care. Campaigns like Go Red for Women emphasize the importance of early intervention and ongoing prevention.

Conclusion

The association between uterine fibroids and heart disease risk highlights the complex interplay between reproductive and cardiovascular health. Current evidence shows that women with fibroids face a substantially higher risk of developing heart disease, even years after diagnosis. Although researchers are still uncovering the exact mechanisms, inflammation, hormonal changes, anemia, and high blood pressure likely contribute to this elevated risk.

For women, this means that a fibroid diagnosis is not only a gynecologic issue—it is also a signal to pay close attention to heart health. By maintaining blood pressure, addressing anemia, and adopting heart-healthy habits, women can take proactive steps to safeguard long-term cardiovascular well-being. With continued research, clinical awareness, and public education, uterine fibroids can become a catalyst for broader conversations about women’s heart health and preventive cardiology.