Diagnosis
Lymphocytosis is diagnosed by CBC (Complete Blood Count) blood test. CBC helps us determine the number of white blood cells in the blood and the lymphocytes present in the white blood cells.. Other procedures include bone marrow biopsy, which helps find the root cause of lymphocytosis. One of the important points that doctors might look into is your medical history and medications and conduct other examinations.
The diagnosis of lymphocytosis shows that you have or have earlier had an infection or illness. In most of the cases, lymphocytosis simply means that our body has been fighting a viral infection.
In few cases, lymphocytosis is one of the first signs of certain blood cancers, such as chronic lymphocytic leukemia (CLL) – the most common type of leukemia observed in adults. Further diagnostic tests are usually necessary to rule out other conditions and make a firm diagnosis of the cause of lymphocytosis.