What are the causes of lymphocytosis? • Viral infections, including: measles, rubella, mumps, influenza, infectious hepatitis, infectious mononuc...

Lymphocytosis is a condition characterized by an increase in the number of lymphocytes in the blood. Some of the causes of lymphocytosis include: - Viral infections: Measles, rubella, mumps, influenza, infectious hepatitis, infectious mononucleosis, infectious lymphocytosis, and cytomegalovirus can lead to lymphocytosis. - Transient lymphocytosis related to stress: Stressful situations can cause a temporary increase in lymphocyte count. - Splenectomy: Removal of the spleen can result in lymphocytosis. - Allergic reactions to drugs: Some medications can trigger an allergic reaction, leading to lymphocytosis. - Lymphoid leukemia: This type of cancer affects the lymphocytes and can cause an increase in their numbers. It's important to note that lymphocytosis can also be a normal response to certain situations, such as during an infection or recovery from an illness. If you have concerns about your health, it's always best to consult a healthcare professional for a proper diagnosis and treatment.