Understanding Sarcoidosis as A Lung Disease Caused by Inflammation
- Angela Nguyen
- 1 hour ago
- 2 min read

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




