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White blood cells are essential to healthy immune system functioning, as they help fight off infections and other abnormalities in the blood, bone marrow, and lymphatic system.
The normal WBC counts ranges from 3500 -10900 cells /cmm. Lymphocytes normally form 15 - 45% of the total WBC count (about 1000 - 3500 cells). Any form of inflammation or viral infections can cause elevated levels of lymphocytes (lymphocytosis - more than 4000 lymphocytes /cmm). Your WBC counts and Lymphocyte counts are within normal range. There is no need to worry about them.
With respect to conditions like Lymphomas or leukaemias, the actual counts can be elevated to extreme high levels. The total counts can be in the range of 60000 - 1 lakh cells / cmm, with lymphocytes forming above 60-90% of the cells. In addition most of the cells will have abnormal and premature forms of lymphocytes, which can be confirmed via microscopic examination of a peripheral blood smear.
I hope this clears your doubts.