Asthma. - Overview Asthma condition Last document update:   ago

Overview Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath. Asthma can't be cured, but its symptoms can be controlled. Because asthma often changes over time. Asthma is a long-term disease of the lungs. You might hear your doctor call it a chronic respiratory disease. Severe asthma attacks can be life-threatening. Cause of asthma  Genetics. If a parent has ...