ABPA is a serious lung disease that develops when the body overreacts to a common fungus called Aspergillus. New international guidelines help doctors better diagnose and treat this condition, which affects many people with asthma and cystic fibrosis. The guidelines make diagnosis easier by using simpler tests and lowering the thresholds for detecting the disease, and they provide clear treatment plans depending on how severe each patient’s disease is. These updated standards are especially important in countries like India where ABPA is very common.