Reasons for low eosinophil count in blood routine examination

Low levels of eosinophils in blood routine may be related to physiological fluctuations, viral infections, allergic reactions, endocrine disorders, or drug effects. Eosinophils are a type of white blood cell that participate in allergies and immune regulation. Abnormal values of eosinophils need to be comprehensively judged in conjunction with other indicators.

1. Physiological fluctuations

The proportion of eosinophils in healthy individuals is relatively low, accounting for about 0-1% of the total white blood cell count. Intense exercise, pregnancy, or changes in circadian rhythm may cause temporary fluctuations in values, which usually do not require special treatment. It is recommended to have a blood routine check 1-2 weeks later.

2. Viral infection

Influenza virus, EB virus and other infections may inhibit bone marrow hematopoietic function, leading to a decrease in eosinophils. Often accompanied by symptoms such as fever and sore throat, the infection can be controlled by antiviral drugs such as Lianhua Qingwen Capsules and Oseltamivir Phosphate Granules. After the pathogen is cleared, the indicators can be restored.

3. Allergic reactions

In severe allergies, eosinophils may decrease due to degranulation consumption, which is common in acute attacks of allergic rhinitis or asthma. It is necessary to cooperate with doctors to use loratadine tablets, budesonide nasal spray and other drugs to control symptoms, and detect serum IgE levels to assist diagnosis.

4. hyperthyroidism

Excessive thyroid hormones can inhibit bone marrow hematopoiesis and cause a decrease in eosinophils. Patients often have symptoms such as palpitations and weight loss, and need to regulate thyroid function with medications such as methimazole tablets and propylthiouracil tablets, and regularly monitor hormone levels such as FT3 and FT4.

5. Corticosteroid use

Long term use of drugs such as prednisone tablets and dexamethasone injection can directly inhibit eosinophil production. If medication cannot be stopped due to treatment needs, the dosage should be adjusted under the guidance of a doctor and calcium supplements should be added to prevent osteoporosis.

It is important to maintain a regular daily routine and avoid overexertion. Moderate increase in fish and soy products rich in high-quality protein, as well as animal liver rich in iron, can help restore hematopoietic function in the diet. If it continues to be low or accompanied by other blood cell abnormalities, it is necessary to complete bone marrow puncture and other examinations to rule out hematological diseases.