Lymphocytosis (lim-foe-sie-TOE-sis), or a high lymphocyte count, is an increase in white blood cells called lymphocytes. Lymphocytes are an important part of the immune system. They help fight off diseases, so it’s normal to see a temporary rise in the number of lymphocytes after an infection.
Lymphocytes are one of several different types of white blood cells. Each type of white blood cell has a specific function, and they all work together to fight illness and disease. White blood cells are an important part of your immune system. They help your body fight antigens, which are bacteria, viruses, and other toxins that make you sick.
The normal result for Absolute Lymphocyte Count is 1300 – 3500 cells per microliter of blood for unisex gender and for all age groups.
