Patient's question:
My son currently has a sore throat and no fever. On the 6th of this month, he took a sugar pill, and on the 13th, he received a flu vaccine. Today, during a blood test, the doctor said he has neutropenia with a neutrophil ratio of 8.9%. The doctor said it is severely low. What is going on with this?Doctor's answer:
Neutropenia can be secondary to drug reactions, chemical drug poisoning, ionizing radiation, infections (including viral infections), or autoimmune diseases. It can also occur without a clear cause. However, the most common causes are drug reactions and viral infections. In severe cases, it may be accompanied by toxic encephalopathy or central nervous system infections. Symptoms may include headache, nausea, vomiting, and altered consciousness, even coma. Please actively identify the underlying cause and provide appropriate treatment.