If you visit a hospital with chest pain or shortness of breath but receive "normal" test results, can you truly be reassured? Recent research suggests the answer may be "no," particularly for women.
A study has revealed that women face a significant risk of serious cardiac events even with minimal plaque—fatty deposits of cholesterol and inflammatory substances—in their coronary arteries. While men may require a larger accumulation of plaque to show warning signs, women often experience major heart problems at much earlier stages. This disparity highlights a critical gap in how heart disease is traditionally diagnosed.
Earlier Warning Signs in Women
A research team from Massachusetts General Hospital and Harvard Medical School performed heart CT scans on approximately 4,200 adults who experienced stable chest pain but had no prior history of heart disease. Following the participants for two years, the team found that while women generally had less total plaque than men, their risk for heart attacks and hospitalizations increased at much lower plaque levels.
These findings were published in the American Heart Association (AHA) journal Circulation: Cardiovascular Imaging on February 23, 2026. Researchers point to physiological differences as the primary cause: women’s coronary arteries are, on average, narrower than men’s. Consequently, even a small deposit can cause a disproportionate reduction in blood flow, leading to functional abnormalities long before a vessel is completely blocked.
The Danger of Narrower Vessel Diameters
The study is noteworthy because it evaluated "coronary burden" relative to vessel size rather than just the absolute volume of plaque. Because women’s vessels have a smaller diameter, the impact of fatty deposits on circulation is magnified.
This suggests that applying a universal standard for "dangerous" plaque levels across both genders likely underestimates the risk for women. Experts emphasize that this biological difference is a leading reason why heart disease is often recognized too late in female patients.
Beyond the "Normal" Result: What Women Should Watch For
For women, a test result that falls within the "normal" range may not tell the whole story. If symptoms such as chronic fatigue, shortness of breath, or persistent indigestion recur, they should not be dismissed as simple stress or gastrointestinal issues. Instead, they may be subtle indicators of underlying heart disease.
While the study was based on patients already experiencing stable chest pain, the researchers suggest that clinical practice must adapt. Adjusting assessment criteria based on gender could prevent delayed diagnoses and improve long-term outcomes. However, individual risk assessments should always be conducted through a consultation with a specialist.
Frequently Asked Questions
Q1. If my test results are normal, can I stop worrying about heart disease?
Not necessarily. This study indicates that women may still be at risk even if fat accumulation in the heart vessels appears minimal or within a "normal" range. If symptoms persist and interfere with your daily life, additional evaluation is recommended.
Q2. Why is it more difficult to identify heart symptoms in women?
Women often do not experience the "classic" crushing chest pain associated with heart attacks. Instead, symptoms may be vague, such as extreme fatigue, shortness of breath, indigestion, or shoulder pain. These are frequently mistaken for other minor health issues, leading to dangerous delays in diagnosis.
Q3. When should I return to the hospital after a normal test?
If your symptoms recur or worsen, you should consult a specialist regardless of previous results. In particular, if you find yourself becoming fatigued more easily than usual or experiencing new shortness of breath, it is critical to re-evaluate your heart health.
Q4. Who should consider a heart CT scan?
A heart CT scan can be beneficial for those with persistent chest pain or shortness of breath, as well as those with risk factors like high blood pressure, diabetes, or high cholesterol. Because the necessity of the test depends on your unique health profile, you should discuss this option with your doctor.
