Submit Your Comment

What causes pulmonary fibrosis?

Pulmonary fibrosis can be caused by many conditions including:

  • Chronic inflammatory processes (sarcoidosis, Wegener's granulomatosis)
  • Infections
  • Environmental agents (asbestos, silica, exposure to certain gases)
  • Exposure to ionizing radiation (such as radiation therapy to treat tumors of the chest)
  • Chronic conditions (lupus, rheumatoid arthritis)
  • Certain medications

In a condition known as hypersensitivity pneumonitis, fibrosis of the lung can develop following a heightened immune reaction to inhaled organic dusts or occupational chemicals. This condition most often results from inhaling dust contaminated with bacterial, fungal, or animal products.

In some people, chronic pulmonary inflammation and fibrosis develop without an identifiable cause. Most of these people have a condition called idiopathic pulmonary fibrosis (IPF) that does not respond to medical therapy, while some of the other types of fibrosis, such as nonspecific interstitial pneumonitis (NSIP), may respond to immune suppressive therapy.

Synonyms (other names) for various types of pulmonary fibrosis that have been used in the past include chronic interstitial pneumonitis, Hamman-Rich syndrome, and diffuse fibrosing alveolitis.

Return to Pulmonary Fibrosis

MedicineNet appreciates your comment. Your comment may be displayed on the site and will always be published anonymously. Patient Comments FAQs


Enter your Comment(required)

Optional Information

Tell us a bit about your background to make your comments more useful to other MedicineNet users. The information below is optional.

Screen Name: *

Gender of Patient:Male Female

Age Range of Patient:

I am a: Patient Caregiver

* Screen Name will appear next to the published comment. Please do not include your full name or email address.

By submitting your comment, and other materials (collectively referred to as a "Submission") to MedicineNet, you grant MedicineNet permission to use, copy, transmit, publish, display, edit and modify your Submission in connection with its Web site. MedicineNet will not pay you for your Submission. You represent that you have all rights necessary for MedicineNet to use your Submission as set forth above.

Please keep these guidelines in mind when writing your comment:

  • Please make sure you address the question asked.
  • Due to the overwhelming number of comments received, not all comments will be published.
  • When selecting comments to publish, our staff will choose those that are educational and complement the topic. Please try to stay on topic.
  • Your comment may be edited. We would typically edit comments to make them clearer and more readable. We will remove personal information such as last names, email and web addresses, and other potentially harmful information.
  • We will not notify you if your comment has been published. We suggest that you check back on the topic article regularly.
  • We do not provide medical or healthcare advice, treatment, or diagnosis.

Thank you for participating!

I have read and agree to abide by the MedicineNet Terms and Conditions and the MedicineNet Privacy Policy (required).

To prevent our systems from spam, please complete the following prior to submitting your comment.




MedicineNet Doctors

Suggested Reading on Pulmonary Fibrosis by Our Doctors

Health Solutions From Our Sponsors