High Eosinophils

High Eosinophils: What Does It Mean?

There are four types of lymphocytes in the human body: neutrophils, basophils, monocytes, and eosinophils. Each of them fulfills a function within the immune system. Eosinophils represent only between 1% and 5% of the lymphocytes that we can find in the body. They are a type of phagocytic cell that feels a peculiar attraction to cells that produce histamines, so its increase is related to allergies. In addition, these cells can help other types of white blood cells fight more than one type of infection, including they can help you cope with parasitic infections.

What can high eosinophils or eosinophilia mean?

If a blood test shows that eosinophils are above normal values, one of the following causes may be suspected:


Allergic reactions such as dermatitis, the rhinitis, asthma, among many others; They can cause the number of eosinophils in the blood to increase causing eosinophilia. If the medical history is added to this, a very fast diagnosis can be obtained.

Consumption of any medication

Some medications can trigger eosinophilia, which could also result in the appearance of a clinical picture with the presence of fever, nephropathy and / or pulmonary infiltrations. Some of the medications that can cause these are the penicillins, cephalosporins, anti-inflammatory, among others.

HIV infection

Both the presence of the human immunodeficiency virus and its treatment usually cause a very large increase in eosinophils. Many times this can cause serious complications.

Bacterial and viral infections

High eosinophils can also indicate that the body is fighting an infection, either bacterial like tuberculosis or viral like influenza.

Endocrine system diseases

Metabolic diseases, such as all types of kidney failure, cholesterol crystal embolism, among others, also cause the presence of eosinophils in the blood to increase.

Autoimmune diseases

Another cause of the increase in this type of white blood cell is autoimmune diseases such as lupus.

When a person is coping with an eosinophilia problem, they usually have symptoms such as fever, decreased body weight, skin irritations, inflammation in the lymph nodes and pain in the areas adjacent to them. All of this is directly related to lymphocyte problems, and in turn can be linked to other health problems.

Diagnosis of eosinophilia

Eosinophilia cannot be avoided. Eosinophilia is a symptom of another health problem. So when a doctor detects these kinds of problems, instead of treating eosinophilia, he should focus on finding out which condition is causing it. Depending on the degree of eosinophilia and the results of other laboratory tests, the main disease can be diagnosed. It is very important that if someone has elevated levels of eosinophils, a an HIV test.

How to reduce the level of eosinophils

To reduce eosinophil levels It will depend on the origin of the alteration, despite this, in many cases the specialists prescribe corticosteroids without knowing with certainty what is the cause of the alteration.

However, this is not always reliable. The correct thing to do is to look for the cause and treat it, in case it is due to the consumption of any medication, this should be stopped.

In summary

It is a type of white blood cell that plays a very important role in defending our body, and not only that, but it can also help detect some diseases.

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