what are the causes of low lymphocytes
Specific causes of lymphocytosis include: 1  Acute lymphocytic leukemia. 2  Chronic lymphocytic leukemia. 3  Cytomegalovirus (CMV) infection. 4  HIV/AIDS. 5  Mononucleosis.6  Multiple myeloma. 7  Other viral infections. 8  Tuberculosis. 9  Vasculitis. 10  Whooping cough.pecific causes of lymphocytosis include: 1  Acute lymphocytic leukemia. 2  Chronic lymphocytic leukemia. 3  Cytomegalovirus (CMV) infection. 4  HIV/AIDS. 5  Mononucleosis. 6  Multiple myeloma. 7  Other viral infections. 8  Tuberculosis. 9  Vasculitis. 10  Whooping cough.