A new study reveals that women with polyendocrine metabolic ovarian syndrome (PMOS), formerly known as polycystic ovary syndrome (PCOS), face a significantly higher risk of heart disease. Researchers found these women are four times more likely to experience serious cardiovascular issues like heart attacks and strokes, even when other known risk factors are absent. This large-scale research, led by the University of Pennsylvania, highlights an urgent need for closer monitoring of heart health in millions of women.[pennmedicine+4]
PMOS Linked to Major Heart Problems
The groundbreaking study, published on July 20, 2026, in The Lancet Obstetrics, Gynaecology & Women's Health, is the largest of its kind in the United States.It analyzed health data from over 2 million participants, including more than 413,000 women diagnosed with PMOS.The findings show a clear link between PMOS and atherosclerotic cardiovascular disease (ASCVD), a condition where plaque builds up in the arteries.[pennmedicine+10]
The research team from the Perelman School of Medicine at the University of Pennsylvania and the University of Rochester Medicine discovered that women with PMOS had roughly 2.5 times higher odds of having a heart attack or stroke during the study period.They were also 3.4 times more likely to suffer a transient ischemic attack (TIA), often called a "mini-stroke," which serves as a warning sign for future strokes.Furthermore, the study noted almost a fourfold increase in the risk of peripheral artery disease, which involves narrowed arteries outside the heart, typically in the legs.[pennmedicine+2]
Risk Independent of Other Factors
A crucial aspect of this new study is its finding that the elevated heart disease risk in women with PMOS is independent of other common risk factors.This means the increased risk persists even after accounting for conditions like obesity, type 2 diabetes, high blood pressure, and high cholesterol.Previous research had identified associations between PMOS and these risk factors, but the new study's large dataset allowed researchers to isolate the direct impact of PMOS itself on cardiovascular health.[pennmedicine+7]
"Our work shows that it is imperative for clinicians to closely track and evaluate cardiovascular health in patients with PMOS," said Dr. Anuja Dokras, senior author of the study.Dr. Dokras, who is the Founders Professor of Women's Health at Penn and director of the Penn Polyendrocine Metabolic Ovarian Syndrome Center, emphasized the need for both patients and doctors to prioritize heart health.She also advised individuals with PMOS to manage other factors that can harm the heart, such as smoking, inactivity, high LDL cholesterol, and existing diabetes or high blood pressure.[pennmedicine+5]
Understanding PMOS and Its Impact
PMOS, affecting 10 to 13 percent of women of reproductive age, is a common hormonal condition.Despite its prevalence, about 70 percent of women with PMOS are unaware they have it.The condition was recently renamed from Polycystic Ovary Syndrome (PCOS) to Polyendocrine Metabolic Ovarian Syndrome (PMOS) to better reflect its wide-ranging hormonal, metabolic, and reproductive effects beyond just the ovaries.This change aims to improve understanding and diagnosis.[pennmedicine+4]
The disorder can lead to various health problems that extend beyond fertility issues, impacting a person's health throughout their lifetime.These include an increased risk of endometrial cancer and type 2 diabetes, in addition to the newly clarified cardiovascular risks.The study's average participant age was 31 at the start, underscoring that these risks can begin in relatively young adulthood.[pennmedicine+3]
What Comes Next for Women's Health
The findings strongly suggest that PMOS may directly contribute to life-threatening cardiovascular conditions.This new evidence reinforces the importance of early heart health screenings and comprehensive management strategies for women with PMOS. Healthcare providers should consider PMOS a significant independent risk factor for heart disease.[pennmedicine+2]
Regular monitoring of symptoms and proactive management of long-term risks are crucial for women diagnosed with PMOS.Adopting a healthy lifestyle, including weight management, balanced eating, and consistent physical activity, remains vital for reducing overall cardiovascular risk. The study's results call for increased awareness among both patients and medical professionals about the serious heart health implications of PMOS.[the-independent+3]
