Lymphocyte counts in children are slightly different from those in adults, and elevated values can be a normal physiological phenomenon in children or can be due to disease factors. It needs to be analyzed specifically according to the age of the child and the accompanying symptoms, and then treated accordingly. Common causes and treatment 1. Children born between 1 and 4 weeks old generally have higher than normal adult levels of lymphocytes in routine blood tests. The daily blood test results mainly refer to the standard of adults, so the phenomenon of elevated lymphocyte values will occur. If it is not accompanied by other symptoms such as cough and fever, no special treatment is needed. It is only necessary to observe the child’s mental and physical condition and to conduct routine blood tests. 2. Elevated lymphocytes in children can also be caused by disease factors. Lymphocyte elevation is usually due to viral infections, commonly seen in upper respiratory tract infections, chickenpox, measles, and Mycobacterium tuberculosis infections. It can also be accompanied by different disease symptoms, such as nasal congestion, runny nose, cough, sore throat, etc., then it is a viral cold. If there are symptoms such as night sweats and weight loss, it may be Mycobacterium tuberculosis infection. When the lymphocytes are elevated due to the disease, timely treatment under the guidance of a professional doctor is required. Caution When examining routine blood, the measurement result may be abnormally elevated due to reagents, instruments, voltage and other factors. Therefore, it is necessary to recheck the blood routine to exclude abnormal effects and to confirm whether the lymphocytes are really high.