Lymphocytes are a type of white blood cell. They help your body’s immune system fight cancer and foreign viruses and bacteria. Your lymphocyte count can be taken during a normal blood test at your …

Dec 8, 2025 · There are several types—called T cells, B cells, and natural killer (NK) cells—that support the immune system in different ways. The main function of lymphocytes is to recognize and …

Jan 5, 2022 · Lymphocytes are a type of white blood cell produced in the bone marrow. Learn what blood tests can show about lymphocyte levels, what's considered a normal range for lymphocytes, …

Oct 11, 2024 · Before seeing a doctor about abnormal lymphocyte levels, it’s important to ask yourself if you really need a consultation. If you’re fighting off an infection, for instance, and the antibiotics seem …

Sep 7, 2025 · What does it mean if your lymphocyte count is high or low? A higher-than-normal lymphocyte count is called lymphocytosis, while a lower-than-normal count is known as …

Lymphocyte ... A lymphocyte is a type of white blood cell (leukocyte) in the immune system of most vertebrates. [1]

Sep 10, 2024 · There are three main types of lymphocytes: B cells: Produce antibodies to fight off infections. T cells: Directly attack infected or abnormal cells. Natural killer (NK) cells: Destroy …

Dec 5, 2025 · A lymphocyte is a type of white blood cell that is of fundamental importance in the immune system, particularly for its role in determining the specificity of the immune response to infectious …

Dec 6, 2025 · There are three main types of lymphocytes: B cells, T cells, and natural killer (NK) cells. Each has a unique role in defending your body against infections and diseases.

Jan 30, 2017 · Lymphocytes are white blood cells. Your lymphocyte counts can help your doctor diagnose an infection or other condition.