Rheumatoid Arthritis and Your Lungs: What Every RA Patient Should Know About Interstitial Lung Disease

When most people think about rheumatoid arthritis (RA), they picture swollen fingers, stiff mornings, and aching joints. But RA is an autoimmune disease, which means it can affect more than your joints.

One of the most important complications to know about involves your lungs. Even if your joints feel well controlled, your lungs deserve attention too.

As a Chicago rheumatologist practice, Chicago Arthritis and Regenerative Medicine helps patients understand the whole picture of their condition, not just the parts that hurt.

What Is Interstitial Lung Disease (ILD)?

Interstitial lung disease, or ILD, is a condition where inflammation and scarring develop in the tissue surrounding the tiny air sacs in your lungs.

These air sacs are where oxygen passes into your blood. When the surrounding tissue becomes inflamed or scarred, oxygen has a harder time getting through. Over time, this can make breathing more difficult.

How Common Is ILD in People With RA?

ILD is more common than many patients realize:

• About 1 in 5 people with RA show lung changes consistent with ILD on imaging
• About 1 in 10 have clinically significant lung disease

That’s why lung health is an important part of complete arthritis care.

Who Is at Higher Risk?

Not everyone with RA has the same risk. You may be more likely to develop ILD if you:

• Are an older adult
• Are male
• Smoke or have a history of smoking
• Have very active RA
• Have high levels of rheumatoid factor (RF) or anti-CCP antibodies

If any of these apply to you, it’s worth discussing lung screening with your rheumatology specialist.

Warning Signs to Watch For

Every person with RA should be asked about two key symptoms:

• Shortness of breath during activity (climbing stairs, walking briskly, carrying groceries)
• A persistent dry cough

Why Symptoms Alone Aren’t Enough

Here’s the challenge: early lung disease may cause no symptoms at all. And listening to your lungs with a stethoscope can miss it too.

That’s why patients at higher risk may benefit from screening before any symptoms appear.

How Is ILD Diagnosed?

For higher-risk patients, two tests are especially helpful:

Pulmonary Function Tests (PFTs)

These breathing tests measure how well your lungs move air and transfer oxygen. Repeating them over time helps your doctors see whether lung function is stable or changing.

High-Resolution CT Scan

A high-resolution CT scan gives a detailed look at your lung tissue. It’s especially useful because it shows the pattern of lung involvement, which helps guide treatment.

Understanding Your CT Pattern

The two most common patterns are:

• NSIP (Nonspecific Interstitial Pneumonia): A more inflammatory pattern that may respond better to anti-inflammatory or immune-targeting treatment
• UIP (Usual Interstitial Pneumonia): A more scarring pattern that can be more likely to progress

Treatment Options for RA-Related Lung Disease

Treatment depends on your CT pattern and whether your breathing tests are changing over time. Effective autoimmune disease treatment often involves teamwork between your rheumatologist and a pulmonologist (lung specialist).

Medications That Calm Lung Inflammation

Options your care team may consider include:

• Mycophenolate (CellCept)
• Rituximab
• Abatacept (Orencia), which may also help, though it has somewhat less research data for ILD

The Role of Steroids

A short course of steroids may be appropriate in select cases. However, steroids carry risks, so they should be used carefully and thoughtfully.

Controlling the RA Itself

Managing your underlying rheumatoid arthritis remains essential. Keeping RA activity under control is a key part of protecting both your joints and your lungs.

When Scarring Progresses

If lung scarring continues to worsen, additional options include:

• Anti-fibrotic medications such as nintedanib (Ofev), which help slow scarring
• Lung transplantation, which may be considered in severe cases

RA vs. Osteoarthritis: Why the Difference Matters

Patients sometimes confuse rheumatoid arthritis with osteoarthritis. Osteoarthritis is “wear and tear” joint degeneration, while RA is an autoimmune disease that can affect the whole body, including the lungs.

That’s why getting the correct diagnosis from a qualified rheumatology specialist matters. Osteoarthritis treatment, which may include options like PRP therapy and other regenerative medicine approaches for joint pain relief, looks very different from the immune-focused care RA requires.

What You Can Do Today

If you have RA, here are practical steps to protect your lung health:

• Tell your rheumatologist about any change in your breathing, no matter how small
• Don’t ignore a lingering dry cough
• Quit smoking if you smoke, since it raises your risk
• Ask about screening if you’re in a higher-risk group
• See a pulmonologist if your rheumatologist recommends it

Conclusion: Protecting More Than Your Joints

Rheumatoid arthritis is a whole-body condition, and your lungs are part of that picture. Interstitial lung disease affects a meaningful number of people with RA, and it can develop quietly before symptoms appear.

The good news? With awareness, appropriate screening, and a coordinated care plan, lung involvement can be identified and managed.

At Chicago Arthritis and Regenerative Medicine, we offer comprehensive arthritis treatment in Chicago, from autoimmune disease management to regenerative medicine in Chicago for chronic pain management and joint pain relief.

Have RA and questions about your lung health? Learn more or schedule a visit at ChicagoArthritis.com.

This article is for educational purposes and does not replace personalized medical advice. Always talk with your doctor about your specific situation.

---

Rheumatoid Arthritis vs. Osteoarthritis: What’s the Difference in Inflammation?

Best Non-Surgical Treatments for Shoulder Tendinitis

Osteoarthritis + RA: What’s the Connection?