Can Autoimmune Diseases Increase Cardiovascular Risk? Doctor Explains The Link

When people think about autoimmune diseases, they usually associate them with symptoms such as joint pain, skin rashes or chronic fatigue. Heart disease rarely comes to mind. However, doctors are increasingly recognising that autoimmune diseases can affect far more than the organs they are best known for.

According to the British Heart Foundation, conditions such as rheumatoid arthritis, lupus and psoriasis are now understood to be systemic diseases, meaning they can affect the entire body. One of the biggest concerns is their impact on the heart and blood vessels. Research shows that people with certain autoimmune diseases have a higher risk of developing cardiovascular disease, sometimes at a younger age than expected.

Understanding this link is important because early monitoring and treatment can help reduce the risk of serious complications.

How Are Autoimmune Diseases Linked To Heart Disease?

Dr Tushar Tayal, Associate Director - Internal Medicine, CK Birla Hospital, Gurugram, explains that doctors are increasingly warning patients about the connection between autoimmune diseases and cardiovascular problems. Conditions that were once thought to affect only the joints or skin are now recognised as systemic illnesses.

The inflammation associated with these diseases does not remain limited to one area of the body. Instead, it circulates throughout the bloodstream and can gradually damage blood vessels over many years before any heart-related symptoms appear.

This silent damage is one of the main reasons why cardiovascular screening is becoming an important part of autoimmune disease management.

Chronic Inflammation Damages Blood Vessels

The immune system normally becomes active only when the body needs to fight infections or heal injuries. In autoimmune diseases, however, the immune system remains switched on almost continuously.

According to Dr Tayal, this constant immune activity releases inflammatory substances, including C-reactive protein (CRP) and various cytokines, into the bloodstream.
Over time, these inflammatory chemicals damage the endothelium, the thin inner lining of blood vessels.

According to a review article published in the Cureus Journal of Medical Science, a healthy endothelium allows blood to flow smoothly and helps regulate blood pressure. When it becomes damaged, cholesterol and other substances can build up more easily inside artery walls.
This process encourages the formation of fatty plaques, known as atherosclerosis, which narrow the arteries and increase the risk of heart attack and stroke.

Inflammation can be as harmful as traditional risk factors

Most people are familiar with common cardiovascular risk factors such as:

• High cholesterol
• High blood pressure
• Diabetes
• Smoking
• Obesity

However, chronic inflammation is now recognised as another major contributor to heart disease.
Dr Tayal explains that while high cholesterol and diabetes damage blood vessels through metabolic changes, autoimmune diseases cause similar harm through persistent inflammation.

Although the pathway is different, the result can be the same, increased plaque formation and a greater chance of cardiovascular disease.

Autoimmune Diseases That Carry The Greatest Risk

Not all autoimmune diseases affect the heart in the same way, but several are strongly linked to cardiovascular problems.

Rheumatoid arthritis
Rheumatoid arthritis is much more than a joint disease.
A systematic review published in the journal 'PeerJ' has shown that people with rheumatoid arthritis have a significantly higher risk of heart attack and stroke than the general population.

Lupus
Lupus can affect almost every organ in the body, including the heart. Besides increasing the risk of atherosclerosis, lupus may directly inflame the heart itself. This can involve:

• The pericardium, the protective sac surrounding the heart
• The myocardium, the heart muscle
• The heart valves

These complications may increase the risk of heart failure, rhythm disturbances, and other cardiovascular problems.

Psoriasis
Although psoriasis is often viewed as a skin condition, it is also an inflammatory disease.
Moderate to severe psoriasis has been linked with an increased risk of heart disease, particularly in younger adults with long-standing disease, shows a study published in the journal ‘Dermatology and Therapy’.

Heart Disease Can Develop Earlier

One of the biggest challenges is that cardiovascular disease may appear earlier than expected in people with autoimmune conditions.

Dr Tayal explains that these patients often develop heart problems without the usual warning signs that doctors typically rely on.

Someone may be relatively young, have only mildly raised cholesterol and yet still develop significant artery disease because years of inflammation have already damaged the blood vessels.

This makes regular screening especially important.

Do Medicines for Autoimmune Conditions Increase Cardiovascular Risk?

Some treatments used to control autoimmune diseases may influence heart health. Corticosteroids, commonly prescribed to reduce inflammation during disease flare-ups, can raise:

• Blood pressure
• Blood sugar
• Cholesterol levels
• Body weight

These changes may contribute to cardiovascular risk if steroids are used at high doses or for prolonged periods.

However, that this should never be interpreted as a reason to stop treatment. In fact, allowing autoimmune disease to remain uncontrolled is generally far more harmful to the heart than appropriately supervised medication.

Also Read: Are Energy Drinks Dangerous for Your Heart? Here’s What A Cardiologist Thinks

Reduce Cardiovascular Risk With These Tips

People living with autoimmune diseases can take several practical steps to protect their heart. These include:

• Having regular blood pressure checks
• Monitoring cholesterol levels
• Checking blood sugar when advised
• Discussing inflammatory markers with their doctor
• Staying physically active within their abilities
• Following a balanced, heart-healthy diet
• Maintaining a healthy weight
• Avoiding smoking
• Taking prescribed medications consistently
• Attending regular follow-up appointments

Managing inflammation effectively is one of the most important ways to reduce long-term heart disease risk.

Importance of awareness

Many patients are simply unaware that autoimmune diseases can affect the heart.
As a result, cardiovascular screening may not receive enough attention until complications develop.

When patients understand that the risk exists, they are more likely to ask about appropriate screening, monitor their heart health and work with their healthcare team to reduce preventable complications.

Knowledge allows people to become active participants in their long-term care rather than discovering cardiovascular disease only after symptoms appear.

Final Word

Autoimmune diseases do much more than affect joints, skin or other specific organs. The chronic inflammation that drives these conditions can also damage blood vessels, accelerate plaque formation and increase the risk of heart attack, stroke and other cardiovascular diseases. While some medications can influence blood pressure, cholesterol and blood sugar, controlling autoimmune disease remains essential because untreated inflammation poses an even greater threat to heart health.