What are the possible issues with a high lymphocyte percentage?

Jun 30, 2024 Source: Cainiu Health
Disease description:

A few days ago, I accidentally caught a cold and developed a fever. I went to a Class 3A hospital and had blood drawn. Now the physical examination report says my lymphocyte percentage is high. I don't know whether it's caused by the fever. Could you please tell me what issues a high lymphocyte percentage may indicate?

Doctor's answer (1)
Dr. Liu Feng
An elevated lymphocyte percentage may involve several issues, mainly including: 1. Infection: It may be caused by bacterial or viral infections, such as viral colds, chickenpox, measles, etc., which can lead to an increased number of lymphocytes. 2. Immune disorders: Such as rheumatoid arthritis, systemic lupus erythematosus, etc., these conditions can affect the normal function of the immune system, leading to an increased lymphocyte percentage. 3. Malignant diseases: Such as leukemia, lymphoma, etc., these conditions can cause abnormal proliferation of lymphocytes in the bone marrow, resulting in an elevated lymphocyte percentage. 4. Other conditions: Such as anemia, after organ transplantation, etc., may also present with an increased lymphocyte percentage. Specific diagnosis needs to be made in combination with individual symptoms and medical tests.