Eosinophils

Eosinophils are a type of white blood cell, a crucial part of the immune system. They primarily help the body fight off parasitic infections and are involved in allergic reactions. When the body encounters allergens like pollen or pet dander, eosinophils can respond by releasing substances that contribute to inflammation and other immune responses. While they play a protective role, an excess of eosinophils can lead to issues like asthma or other allergic conditions. Their levels can be measured through blood tests, providing insights into various health conditions.