What Causes High Eosinophil Count?

March 5, 2024 | by Yashaswi Pathakamuri | Posted in FAQ's

eosinophil cell

An elevated eosinophil count, a condition known as eosinophilia, can be caused by various factors. Eosinophils are a type of white blood cell that plays a role in the immune system and is often associated with allergic reactions and parasitic infections. Here are some common causes of a high eosinophil count:

  • Allergies: Allergic conditions, such as asthma, hay fever, and allergic dermatitis, can lead to an increase in eosinophils.
  • Parasitic Infections: Eosinophils are involved in the body’s response to parasitic infections. Conditions like intestinal parasites or helminth infections can cause eosinophilia.
  • Autoimmune Diseases: Some autoimmune diseases, such as eosinophilic granulomatosis with polyangiitis (formerly known as Churg-Strauss syndrome) and hypereosinophilic syndrome, can result in elevated eosinophil levels.
  • Certain Medications: Some medications, including certain antibiotics, can cause eosinophilia as a side effect.
  • Skin Disorders: Conditions like eczema or dermatitis may lead to increased eosinophil counts.
  • Blood Disorders: Certain blood disorders, such as eosinophilic leukemia, may cause an abnormal increase in eosinophils.
  • Hypersensitivity Reactions: Severe allergic reactions or hypersensitivity to certain substances can trigger eosinophilia.
  • Connective Tissue Diseases: Some connective tissue diseases, like rheumatoid arthritis, can be associated with elevated eosinophil levels.

It’s important to note that a high eosinophil count alone does not provide a specific diagnosis. Additional tests and examinations are usually required to determine the underlying cause of eosinophilia. If you or someone you know has an elevated eosinophil count, it’s crucial to consult with a healthcare professional for a comprehensive evaluation and appropriate management.

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