I wouldn’t be too worried, but if it were my wife, I would have her see a good hematologist.

With WBC, there is usually an area where it shows the “diff” or the breakdown of the various cell types that make up the “WBC” class.

For example: lymphocytes, neutrophils.

It also depends on how low the value is.

If you DM me a picture, including the diff, I could provide more information.

Understanding, my area is urology, not hematology.