hello and welcome to HCM,White blood cell
counts) are raised in infections and leukemia
leukemias are characterized by very high WBC levels (over 50,000/ cubic mm).
However, the WBC count can be lower in case of leukemias. They are called sub-leukemic leukemias.
In infections, the WBC count is also increased.
An increase in lymphocytes (as in your case) can raise the WBC count.
Lymphocytes are increased in chronic infections.
H. pylori infection can lead to lymphocytosis
since it is a chronic infection.
Treatment of H. pylori infection will clear away the lymphocytosis and raised WBC count.
Get the differential white blood cell count (DLC) in your mothers case.
The DLC helps to determine the cause of infection.
Thanks and take care
Dr Shailja P Wahal