What is asthma? Find medical information on the symptoms, causes and treatment of asthma and learn more about asthma in this category overview.

What is asthma?

Asthma is a respiratory condition that causes the airways in the body to constrict, limiting the amount of air coming in and out of the lungs.

Asthma symptoms

If your asthma isn’t completely controlled, you may experience symptoms.

How is asthma treated?

Because asthma is two conditions rolled into one, inflammation and bronchoconstriction of the airways, the most effective treatment consists of a two-pronged approach, treating both factors simultaneously.

Asthma course and prognosis

If you have asthma, it's important to know that the condition can be completely controlled, allowing you to do exercise and other activities.

Who gets asthma?

Asthma is very common across the globe and is the most common chronic disease among children.

What causes asthma?

There are two distinct phases of asthma that you need to be aware of if you have this condition.

Asthma risk factors

Are you at risk for asthma? Check if the following risk factors apply to you.

Asthma prevention

Treating allergies and getting exercise-induced asthma under control are two important steps in managing your condition.

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Ask the Expert

Asthma Expert

Professor Keertan Dheda has received of several prestigious awards including the 2014 Oppenheimer Award, and has published over 160 peer-reviewed papers and holds 3 patents related to new TB diagnostic or infection control technologies. He serves on the editorial board of the journals PLoS One, the International Journal of Tuberculosis and Lung Disease, American Journal of Respiratory and Critical Medicine, Lancet Respiratory Diseases and Nature Scientific Reports, amongst others.Read his full biography at the University of Cape Town Lung Institute

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