10 doctors weighed in:

What can cause chronic bronchitis with normal lung function test and no relation to allergy or infectious disease?

10 doctors weighed in
Dr. John Chiu
Internal Medicine - Allergy & Immunology
9 doctors agree

In brief: Tobacco

Tobacco smoking by far is the most common cause in the absence of allergy or infection.
Air pollution is also a strong suspect although the link is not as well proven as with tobacco.

In brief: Tobacco

Tobacco smoking by far is the most common cause in the absence of allergy or infection.
Air pollution is also a strong suspect although the link is not as well proven as with tobacco.
Dr. John Chiu
Dr. John Chiu
Thank
1 comment
Dr. Charlene Sojico
Not to forget second hand smoke.
Dr. Diane Minich
Family Medicine
1 doctor agrees

In brief: Smoking

oe exposure to second hand smoke.

In brief: Smoking

oe exposure to second hand smoke.
Dr. Diane Minich
Dr. Diane Minich
Thank
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