Leukocytes are white blood cells. They function as part of the immune system but may pass into the urine. ... A correct diagnosis is vital for identifying a path of treatment.

Discover the 7 warning signs of pyuria, its causes, and effective treatments. Learn how to protect yourself from this serious ...

Medically reviewed by Anju Goel, MD Pyuria is a term that describes the presence of pus, which is mostly made up of white blood cells, in urine. Urine typically contains very few or no white blood ...

How to Identify White Blood Cells in Urine. Your health care provider will likely order a urine test, called a WBC esterase test, to see if there are white blood cells present.

Leukocytes are white blood cells that help protect people from infection. They are not usually present in the urine, so when they are, it can indicate an infection. Learn more here.

White blood cells in a concentration of 20,000 to 30,000 per cubic millimeter are drawn to the 0.5 mark of a white-cell-diluting pipette. Diluted complement is then drawn to the 1.0 mark.