Reasons for high white blood cell count in children's physical examination blood routine

The high white blood cell count found in children's physical examination may be related to physiological factors, infections, blood diseases, and other factors. The common reasons include sampling after intense exercise, bacterial infections, viral infections, allergic reactions, leukemia, etc. It is recommended to make a comprehensive judgment based on other indicators and clinical manifestations, and seek medical attention promptly if necessary.

1. Sampling after vigorous exercise

Children who engage in vigorous activity before blood collection may experience a transient increase in white blood cells due to stress reactions. This condition usually has no other abnormal symptoms, and can be restored to normal after resting for 1-2 hours and re examination. Parents should avoid letting their children run and play excessively before the physical examination, and it is more accurate to sit quietly for 15 minutes before sampling.

2. Bacterial infection

During acute bacterial infections such as tonsillitis and pneumonia, neutrophils will significantly increase. The child may have symptoms such as fever, cough, and local redness and swelling. Further examination of C-reactive protein is required. After diagnosis, antibiotics such as cefaclor dry suspension and amoxicillin clavulanate potassium granules can be used according to medical advice for treatment.

3. Viral infection

EB virus, influenza virus and other infections may cause an increase in lymphocyte proportion. Common manifestations include sore throat, swollen lymph nodes, rash, etc. Antiviral drugs such as oseltamivir phosphate granules and Lianhua Qingwen granules can be used in combination, while monitoring for the presence of liver and spleen enlargement.

4. Allergic reactions

Eosinophils may increase during allergic rhinitis and asthma attacks. Children often have a history of allergies such as sneezing and itching on the skin. Avoid contact with allergens and use antihistamines such as loratadine syrup and montelukast sodium chewable tablets if necessary to control symptoms.

5. Hematological disorders

Continuous unexplained increase in white blood cells requires vigilance against blood diseases such as leukemia, which may be accompanied by symptoms such as anemia, bleeding tendency, and bone pain. Bone marrow puncture and other examinations should be performed to confirm the diagnosis, and chemotherapy or targeted therapy should be selected based on the classification, such as injection of drugs such as cytarabine and methotrexate tablets. When abnormal white blood cell count is detected, parents should record their child's recent fever and medication history. It is recommended to choose the same time period for re examination of blood routine to avoid interference from factors such as diet and exercise. Pay attention to balanced nutrition in daily life, supplement citrus fruits rich in vitamin C and high-quality protein in moderation, and ensure sufficient sleep to help regulate immunity. If the values continue to be abnormal or accompanied by other symptoms, it is necessary to seek medical attention in pediatrics or hematology as soon as possible.