Pus cells are a collection of dead white blood cells that accumulate when the body's immune system activates in response to an infection. These cells form a whitish-yellow or yellowish colored protein-rich fluid at the site of the infection, known as liquor puris.
While pus cells themselves aren't harmful, their presence indicates an underlying infection or inflammation. This fluid helps to contain and fight the infection. Pus cells can be found in various parts of the body, including urine, semen, and wounds.
For example, the presence of pus cells in urine, known as pyuria, is a common sign of a urinary tract infection (UTI). This can also be a symptom of kidney infections, sepsis, or other health conditions. Similarly, pus cells in semen can suggest an infection in the reproductive system.
Pus is sometimes green due to the presence of myeloperoxidase, an antibacterial protein produced by certain white blood cells.
