Title: Staphylococcus saprophyticus - Wikipedia
Headings: Staphylococcus saprophyticus
Staphylococcus saprophyticus
Contents
History
Epidemiology and pathogenesis
Clinical features
Laboratory diagnosis
Treatment
Different subspecies
References
External links

Content: S. saprophyticus produces no exotoxins. Clinical features
Patients with urinary tract infections caused by S. saprophyticus usually present with symptomatic cystitis. Symptoms include a burning sensation when passing urine, the urge to urinate more often than usual, a 'dripping effect' after urination, weak bladder, a bloated feeling with sharp razor pains in the lower abdomen around the bladder and ovary areas, and razor-like pains during sexual intercourse. Flank pain may occur due to infection of the upper urinary tract, such as pyelonephritis. Signs and symptoms of renal involvement are also often registered. Laboratory diagnosis
The urine sediment of a patient with a S. saprophyticus urinary tract infection has a characteristic appearance under the microscope manifesting leukocytes, erythrocytes, and clumping due to cocci adhering to cellular elements. Chemical screening methods for bacteriuria, such as, urine nitrate and glucose do not always detect S. saprophyticus infection. This is because unlike Gram-negative Enterobacteriaceae urinary tract infections, S. saprophyticus does not reduce nitrate and has a longer generation time, thus does not consume glucose as rapidly. Even when such an infection occurs above the neck of the bladder, low numbers of colony-forming units (less than 10 5 cfu/ml) are often present. S. saprophyticus is identified as belonging to the genus Staphylococcus using the Gram stain and catalase test.