The white blood cell count is 3.1 x 10^9/L, which is generally in the low range. The range of white blood cell counts may vary from one lab test to another, generally in the range of (4-10) x 10^9/L or (3.5-9.5) x 10^9/L, with 3.1 x 10^9/L being on the low side. Whether or not a 3.1 x 10^9/L white blood cell is pathological also depends on the person’s symptoms and previous white blood cell levels. If the usual white blood cell count is maintained in the range of (3.0-3.5) x 10^9/L and there are no recent signs of discomfort, a white blood cell count of 3.1 x 10^9/L may also be considered a normal level. If the white blood cell count is normally at a slightly higher level, for example, between (5-7) x 10^9/L, and the white blood cell count suddenly drops to 3.1 x 10^9/L, there may be a viral infection or a bacterial infection. In addition, patients with chronic liver disease may also have low white blood cells due to hypersplenism.