Patient's question:
My son currently has inflammation in his throat and has no fever. He took a sugar pill on the 6th of this month and got a flu vaccine on the 13th. Today, when he had 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, and it can also be of unknown cause, but 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, presenting with headache, nausea, vomiting, impaired consciousness, and even coma. Please actively identify the underlying cause and provide appropriate treatment.