Does Lupus Increase Your Risk of Heart Disease?

Yes, systemic lupus erythematosus (SLE) significantly increases the risk of developing cardiovascular disease. People with lupus have a risk of heart disease and events like heart attacks that can be up to 10 times higher than that of the general population ^[1][2].

While that statistic sounds frightening, it is important to understand the context. This “relative risk” is highest in young women with lupus compared to healthy women of the exact same age (who naturally have an extremely low baseline risk of heart attacks). So, while your absolute risk right now might still be small, it is elevated enough that your rheumatologist will monitor your blood pressure, cholesterol, and overall heart health very closely.

The “Bimodal” Risk of Lupus

Doctors often describe the timeline of lupus risks as having a “bimodal” pattern—meaning the major health risks peak at two different stages of the disease.

Early in your diagnosis, the primary focus is on controlling the lupus itself. During this first stage, the greatest risks come from active flares (periods of intense disease activity) and potential infections ^[3]. However, as time goes on and treatments help stabilize the immune system, the focus shifts. Years later, cardiovascular disease emerges as one of the leading long-term health concerns ^[3]. Understanding this shift helps explain why your care team is already thinking about your heart, even if your immediate concern is joint pain or fatigue.

Why Does Lupus Affect the Heart and Arteries?

The connection between lupus and cardiovascular disease primarily comes down to the disease’s effects on your organs and blood vessels, as well as the impact of certain medications.

• Chronic Inflammation: Lupus causes your immune system to mistakenly attack your own tissues, creating ongoing, system-wide inflammation. Over time, this constant inflammation damages the delicate inner lining of your blood vessels ^[4]. This vascular injury accelerates atherosclerosis—a buildup of fatty plaques that stiffen and narrow the arteries—causing it to develop much earlier and progress faster than it would in someone without lupus ^[5][6].
• Lupus Nephritis (Kidney Involvement): If lupus attacks your kidneys, it can severely impact your blood pressure and cholesterol levels, acting as a major secondary driver of cardiovascular risk ^[7].
• Corticosteroids: Medications like prednisone are often essential and life-saving for controlling severe lupus flares. However, long-term or high-dose use of these steroids can contribute to weight gain, raise your blood pressure, increase your blood sugar, and alter your cholesterol levels ^[8][9].
• Antiphospholipid Antibodies: Some people with lupus have immune proteins that mistakenly attack normal proteins in the blood. This significantly increases the risk of blood clots and further raises cardiovascular risk ^[10].

The Good News: Cardioprotective Medications
Not all lupus treatments harm your heart. In fact, hydroxychloroquine (Plaquenil)—the foundational medication for most lupus patients—is widely recognized for its heart-protective benefits. Long-term use of hydroxychloroquine helps lower cholesterol levels, reduces the risk of blood clots, and protects against the progression of plaque in your arteries ^[11][12][13].

Recognizing the Warning Signs

Because 90% of lupus patients are women, it is crucial to recognize that heart attacks often do not present as the classic “crushing chest pain.” While chest pain can happen, women frequently experience “atypical” symptoms, including:

• Profound, unexplained fatigue
• Shortness of breath
• Nausea or vomiting
• Pain in the back, neck, jaw, or stomach

Note: Many lupus patients experience chest pain from pleurisy (inflammation of the lung lining) or costochondritis (inflammation of the rib cartilage). Pleurisy pain typically sharpens when you take a deep breath. However, never ignore new or worsening chest pain—always seek emergency medical care to rule out a heart event.

The Importance of Monitoring

Because lupus itself places a heavy burden on your cardiovascular system, you and your doctor have less “wiggle room” when it comes to standard heart risks ^[14]. Your medical team must aggressively control anything else that could stress your heart ^[15].

• Blood Pressure: Hypertension (high blood pressure) forces your heart to work harder and puts extra mechanical stress on inflamed blood vessels.
• Cholesterol: Dyslipidemia (abnormal levels of fats in the blood, such as high “bad” LDL cholesterol or low “good” HDL cholesterol) provides the raw materials that form artery-clogging plaques ^[16].

Taking Charge of Your Heart Health

While lupus is a lifelong condition, you have a lot of power to protect your heart. Controlling traditional cardiovascular risk factors is one of the most effective ways to offset the risks introduced by lupus.

• Maintain your foundational medications: Take medications like hydroxychloroquine exactly as prescribed, as they actively protect your heart and blood vessels ^[13].
• Keep up with your labs: Ensure your cholesterol, blood sugar, and kidney function are checked regularly.
• Monitor your blood pressure: Have it checked at every doctor’s visit, and consider checking it periodically at home.
• Work on tapering steroids: Work closely with your rheumatologist to find the lowest effective dose of corticosteroids, or discuss steroid-sparing medications to control your disease ^[8].
• Adopt a heart-healthy lifestyle: Focus on an anti-inflammatory or heart-healthy diet (like the Mediterranean diet), stay as physically active as your body allows, and absolutely avoid smoking, which multiplies the damage to your blood vessels.