###Human: Why am I having elevated lymphocytes? ###Assistant: Hello. If you have any type of leukemia especially CLL (chronic lymphocytic leukemia) or MBL (monoclonal B-cell lymphocytosis) then it could have been reflected in the peripheral smear examination report or in flow cytometry investigation. Your flow cytometry report is negative and hence it suggestive of non-leukemia condition. Autoimmune disease chances can be there. So for that, you need to investigate with serum ANA estimation, ESR estimation and then if needed full autoimmune cell panel can be run to exclude any possibility of autoimmune disorder. If you have chronic cold symptoms then also it can be causative for high lymphocytes.