What are eosinophils?
An eosinophil is a type of white blood cell.
Eosinophils are produced in the bone marrow and are normally found in the bloodstream and the gut lining. They contain proteins that help the body to fight infection from parasitic organisms, such as worms. But in certain diseases these proteins can damage the body.
What is eosinophilia?
The term eosinophilia refers to conditions in which abnormally high amounts of eosinophils are found in either the blood or in body tissues.