The National Health Survey 2020-21 was collected online during the COVID-19 pandemic and is a break in time series. Data should be used for point-in-time analysis only and can’t be compared to previous years. See Methodology for more information.
Asthma is a long-term lung condition that is caused by narrowing of the airways when they become inflamed. People with asthma experience difficulty breathing, and the most common symptoms are wheezing, coughing, breathlessness and chest tightness. Asthma may affect people of all ages and can usually be managed through treatment such as medication use (e.g. reliever inhalers and preventer/controller medications) and a healthy lifestyle.