Reactive lymphocyte

Reactive lymphocyte is a type of white blood cell that has undergone changes in response to an infection or immune response. Reactive lymphocytes are larger than typical lymphocytes and have a different appearance under a microscope. They are often seen in blood tests during or after an infection, especially viral infections such as Epstein-Barr virus or cytomegalovirus.

Overview

Lymphocytes are a type of white blood cell that play a key role in the body's immune system. They are responsible for fighting off infections and diseases. When the body is exposed to an infection or other foreign substance, lymphocytes become activated and undergo changes to become reactive lymphocytes. These cells are larger and have a different appearance than typical lymphocytes.

Causes

Reactive lymphocytes are typically seen in response to an infection, especially viral infections. They can also be seen in response to certain medications, autoimmune diseases, and certain types of cancer.

Diagnosis

Reactive lymphocytes are often identified during a complete blood count (CBC) test. This is a common blood test that measures the number and types of cells in the blood. If a high number of reactive lymphocytes are found, it may indicate an ongoing or recent infection or other immune response.

Treatment

Treatment for reactive lymphocytes typically involves treating the underlying cause, such as an infection or autoimmune disease. In some cases, no treatment may be necessary, as the reactive lymphocytes may return to normal on their own once the infection or immune response has resolved.