Lymphocytes: What's a Normal Count?

What Are Lymphocytes?

Lymphocytes are a type of white blood cell that plays a vital role in the body's immune system. They are produced in the bone marrow and then circulate throughout the body, patrolling for foreign invaders such as bacteria, viruses, and fungi. Lymphocytes also play a role in regulating the immune system and preventing autoimmune diseases.

What is a Normal Lymphocyte Count?

The normal lymphocyte count in adults ranges from 1,000 to 4,000 lymphocytes per cubic millimeter of blood.

- A low lymphocyte count (lymphocytopenia) can be a sign of a weakened immune system, which may make a person more susceptible to infections.

- A high lymphocyte count (lymphocytosis) can be caused by a variety of factors, including infections, autoimmune diseases, and certain types of cancer.

What Are the Different Types of Lymphocytes?

There are three main types of lymphocytes:

1) T-cells: These cells are responsible for recognizing and destroying foreign invaders. They also help to regulate the immune system.

2) B-cells: These cells produce antibodies, which are proteins that help to destroy foreign invaders.

3) Natural killer cells: These cells are responsible for killing cells that are infected with viruses or are otherwise damaged.

When Should I see a Doctor?

You should see a doctor if you have a low lymphocyte count or a high lymphocyte count. Your doctor may order additional tests to determine the cause of your abnormal lymphocyte count and recommend treatment if necessary. It's important to note that a low or high lymphocyte count on its own does not necessarily indicate a medical condition, as it can also be influenced by factors such as stress, exercise, and certain medications. Therefore, it's important to consult with a healthcare professional for proper evaluation and interpretation of your lymphocyte count in context with your overall health status.**