A 43-year-old member asked:
What is causing hypersensitivity pneumonitis?
1 doctor answer • 4 doctors weighed in

Dr. Aaron Milstoneanswered
Pulmonology 28 years experience
Sherlock Holmes: It can be extremely difficulty to identify the source of hypersensitivity penumonitis; there are literally tens and tens of sources for the illness. Some of the top offenders include:
•bird droppings
•humidifiers, heating systems, and hot tubs
•liquid chemicals used in the landscaping and florist industries
•moldy hay, straw, and grain
•chemicals released during the production of plastics and ele.
5.9k viewsReviewed >2 years ago
Last updated May 31, 2013
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.