<Li> / ˌpaɪjʊəˈriːə / </Li> <Tr> <Th> Specialty </Th> <Td> Urology </Td> </Tr> <P> Pyuria is the condition of urine containing white blood cells or pus . Defined as the presence of 6 - 10 or more neutrophils per high power field of unspun, voided mid-stream urine . It can be a sign of a bacterial urinary tract infection . Pyuria may be present in the people with sepsis, or in older people with pneumonia . </P> <P> Sterile pyuria, is urine which contains white blood cells while appearing sterile by standard culturing techniques . It is often caused by sexually transmitted infections, such as gonorrhea, or viruses which will not grow in bacterial cultures . Sterile pyuria is listed as a side effect from some medications such as paracetamol (acetaminophen). Its occurrence is also associated with certain disease processes, such as Kawasaki disease and genitourinary tuberculosis . However, there are many known causes, including systemic or infectious disease, structural and physiological reasons, intrinsic kidney pathology, or drugs . </P>

What is meant by pus cells in urine
find me the text answering this question