Low neutrophil count in children’s blood test may be caused by influenza, chickenpox, megaloblastic anemia, etc. Parents need to choose drugs according to the actual situation of children to actively treat the original disease. 1. Influenza: this disease is caused by influenza virus infection, which can lead to neutropenia in children’s blood tests. Parents can follow the doctor’s advice to give children oseltamivir and other antiviral drugs for anti-infection treatment, usually after active treatment of the primary disease neutrophils will slowly recover. 2. Chickenpox: the disease is caused by varicella-zoster virus infection, is a common clinical infectious diseases, can also lead to children’s blood routine examination of neutrophil low. Because the disease itself is self-limiting, most patients can be cured in about 7 days, so the main purpose of clinical treatment is to give acetaminophen and other antipyretic medication for the fever symptoms that may occur in children. 3. Megaloblastic anemia: This is a common nutritional deficiency disease, mainly due to the lack of folic acid or vitamin B12 in children. Parents can give children oral folic acid and other drugs under the guidance of doctors. There are many reasons for low neutrophil counts in children’s blood tests, so it is recommended that parents take their children to the doctor for examination first, so as to clarify the specific cause of the disease and give targeted treatment. All of the above medications should be taken under a doctor’s supervision.