top of page

Understanding Sarcoidosis as A Lung Disease Caused by Inflammation


If you've been diagnosed with sarcoidosis or your healthcare provider suspects you may have it, you may wonder what it is and how it affects your lungs. Although sarcoidosis can involve different parts of the body, it most commonly affects the lungs and nearby lymph nodes.


What Is Sarcoidosis?

Sarcoidosis is an inflammatory disease in which tiny clusters of immune cells, called granulomas, form in the body's organs. These granulomas are not cancerous or contagious, but they can interfere with organ function if they become widespread.


What Are the Symptoms?

Some people have no symptoms and are diagnosed after imaging such as an abnormal chest X-ray. Others may experience:

  • Persistent dry cough

  • Shortness of breath

  • Chest discomfort

  • Wheezing

  • Fatigue

  • Fever or unexplained weight loss

Sarcoidosis can also affect other organs, causing skin rashes, eye issues, swollen lymph nodes, or joint pain.


How Is Sarcoidosis Diagnosed?

There is no single test for sarcoidosis. Your healthcare provider may recommend:

  • Chest X-ray or CT scan

  • Pulmonary function tests

  • Blood tests

  • Bronchoscopy with a biopsy to confirm the diagnosis

These tests also help rule out other conditions with similar symptoms.


How Is Sarcoidosis Treated?

Many people with sarcoidosis do not need treatment because the inflammation may improve on its own.

If treatment is needed, it may include corticosteroids, such as prednisone, or other medications that reduce inflammation. Your healthcare provider will recommend the best treatment based on your symptoms and which organs are affected.


Living With Sarcoidosis

Most people with sarcoidosis can lead active, healthy lives. Regular follow-up appointments help monitor your condition and lung function.

You can also support your lung health by:

  • Avoiding smoking

  • Taking medications as prescribed

  • Staying physically active, if recommended

  • Reporting new or worsening symptoms


Frequently Asked Questions

Is sarcoidosis contagious?

No. Sarcoidosis cannot be spread from person to person.

Can sarcoidosis be cured?

There is no cure, but many people improve over time or experience long periods without symptoms.


The Bottom Line

Sarcoidosis is an inflammatory disease that most commonly affects the lungs. While many cases are mild, regular monitoring helps ensure that any changes in lung function are identified early. If treatment is needed, medications can help reduce inflammation and manage symptoms.


Sources 







Assessed and Endorsed by the MedReport Medical Review Board

©2025 by The MedReport Foundation, a Washington state non-profit organization operating under the UBI 605-019-306

 

​​The information provided by the MedReport Foundation is not intended or implied to be a substitute for professional medical advice, diagnosis, or treatment. The MedReport Foundation's resources are solely for informational, educational, and entertainment purposes. Always seek professional care from a licensed provider for any emergency or medical condition. 
 

bottom of page