What is the absolute lymphocyte count?

Hello, lymphocytes are a type of white blood cell. The absolute lymphocyte count refers to the product of the total white blood cell count and the percentage of lymphocytes. Its normal range is 0.8–4 × 10⁹/L. Under normal circumstances, children have relatively higher lymphocyte percentages; lymphocyte counts gradually decrease between ages 4 and 6, while neutrophil percentages increase, eventually reaching adult reference levels. Additionally, an elevated absolute lymphocyte count is commonly observed in infectious diseases—particularly viral infections. We hope this information is helpful to you. Wishing you a pleasant and healthy life!