What Are the Different Types of Asthma?

How Common Is Allergic Asthma?

Asthma and Osteoporosis Risk

Asthma comes in a variety of different types. Watch pulmonologist Harish Murthy, MD, discuss how allergies, infections, cigarette smoking, exercise and acid reflux can all cause asthma.

Medically reviewed in May 2018.

How Common Is Allergic Asthma?

Asthma and Osteoporosis Risk

more from this guide

6 Asthma Tests to Anticipate

Learn the tests that patients and healthcare providers use to diagnose and monitor asthma.

How to Work Out When You Have Asthma

Why it's time to come up with an asthma-friendly exercise plan.

How Common Is Allergic Asthma?

6 Important Questions About Asthma

What happens during an asthma attack and what does it feel like? Here’s what you should know.