Low white blood cell and neutrophil counts are usually caused by neutropenia. Neutropenia is commonly seen in infections, hematologic disorders, physicochemical factors, and autoimmune diseases.
1. Infections: typhoid infection, influenza, viral hepatitis, chickenpox, rubella, etc.
2. Blood system diseases: aplastic anemia, severe iron deficiency anemia, partial megaloblastic anemia, etc.
3. Physical and chemical factors: X-ray, benzene, lead, mercury, chloramphenicol, antitumor drugs, antidiabetic drugs, antithyroid drugs and so on.
4. Autoimmune diseases: systemic lupus erythematosus, autoantibodies lead to a decrease in the number of white blood cells and neutrophils.
There may be other reasons for low white blood cell and neutrophil counts. It is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment or therapy with the help of the doctor.