What does it mean when fever is accompanied by decreased white blood cells?
May 16, 2023
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
Fever refers to elevated body temperature. When fever occurs, a low white blood cell count may result from the use of antipyretic medications such as acetaminophen tablets, aspirin tablets, or ibuprofen sustained-release capsules during high fever. However, it cannot be ruled out that underlying diseases may also cause low white blood cell counts, such as viral influenza, systemic lupus erythematosus, or aplastic anemia.
Generally, fever refers to an elevated body temperature. A low white blood cell count during fever may be caused by factors such as improper use of medications, viral infections, or systemic lupus erythematosus. The details are as follows:
1. Improper use of medications
If a patient takes antipyretic drugs—such as acetaminophen tablets, aspirin tablets, or ibuprofen sustained-release capsules—during high fever, excessive medication can adversely affect the body and lead to leukopenia (low white blood cell count). This condition does not require specific treatment; symptoms usually resolve after discontinuing the medication.
2. Viral cold (viral infection)
Infection with viruses such as influenza virus, adenovirus, or respiratory syncytial virus can cause upper respiratory tract infections, leading to fever and inducing a decrease in white blood cells. Treatment may include oral administration of ribavirin granules and oseltamivir phosphate granules as directed by a physician.
3. Systemic lupus erythematosus (SLE)
SLE can involve the hematologic system. When blood system involvement occurs, complete blood count tests typically show reduced levels of white blood cells, red blood cells, and platelets. During disease flares, patients may experience fever. Medications such as methylprednisolone tablets or methotrexate tablets may be prescribed under medical supervision.
Besides the above causes, bacterial infections, aplastic anemia, and viral pneumonia may also lead to similar conditions. For accurate diagnosis and treatment, it is recommended to seek medical evaluation at a hospital.
