EBV is a human lymphocyte-loving herpesvirus.EBV is unlikely to cause leukemia, but it may still cause it. 1. EBV does not usually cause leukemia directly, but it is an important tumor-associated virus that has been implicated in the development of some neoplastic diseases, such as nasopharyngeal carcinoma, gastric cancer, and lymphoma. 2. In addition, EBV infection can cause many non-neoplastic diseases, such as infectious mononucleosis due to primary infection, chronic active EBV infection, and EBV-associated hemophagocytic lymphohistiocytosis. Therefore, once it is determined that there is an active EBV infection, it is necessary to go to a specialized department to further improve the blood routine, biochemistry and other tests, and receive standardized treatment under the guidance of a physician as appropriate.