Eosinophils are a type of white blood cell. They help fight off infections and play a role in your body's immune response. They can also build up and cause inflammation.
Normally your blood doesn't have a large number of eosinophils. Your body may produce more of them in response to
- Allergic disorders
- Skin conditions
- Parasitic and fungal infections
- Autoimmune diseases
- Some cancers
- Bone marrow disorders
In some conditions, the eosinophils can move outside the bloodstream and build up in organs and tissues. Treatment of the problem depends on the cause.
- Feeding Tubes (American Partnership for Eosinophilic Disorders)
- Churg-Strauss Syndrome (Mayo Foundation for Medical Education and Research)
- EoE (Eosinophilic Esophagitis) (American Partnership for Eosinophilic Disorders)
- Eosinophilic Fasciitis (Merck & Co., Inc.)
- Eosinophilic Granulomatosis with Polyangiitis, formerly Churg-Strauss Syndrome (EGPA) (Johns Hopkins Vasculitis Center)
- Eosinophilic Lung Disorders (National Jewish Health)
- Hypereosinophilic Syndrome (HES) (American Partnership for Eosinophilic Disorders)
- Leukemia -- Eosinophilic (American Society of Clinical Oncology)
- Genetics Home Reference: eosinophil peroxidase deficiency (National Library of Medicine)
- Genetics Home Reference: PDGFRA-associated chronic eosinophilic leukemia (National Library of Medicine)
- Genetics Home Reference: PDGFRB-associated chronic eosinophilic leukemia (National Library of Medicine)
Journal ArticlesReferences and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Diagnosis and treatment of eosinophilic esophagitis in clinical practice.
- Article: Reduction of blood eosinophil counts in eosinophilic chronic rhinosinusitis after...
- Article: Eosinophilic Esophagitis From an Allergy Perspective: How to Optimally Pursue...
- Eosinophilic Disorders -- see more articles
- Eosinophilic Disorders Glossary (American Partnership for Eosinophilic Disorders)
- About Eosinophilic Disorders (Children's Hospital of Philadelphia)