title: Prostatitis: are the gram-positive organisms pathogenic?
abstract: In 268 patients seen for sterility, sexual impairment or suspected prostatitis symptoms, first and midstream urine fractions, prostatic secretion and post-massage urine cultures as well as semen cultures and exfoliative cytologies of the first urine fraction and prostatic secretion were performed. Gram-positive bacteria were isolated in 160 cases. Of these, 111 (69.3%) had significant cultures (Meares and Stamey criteria). Nevertheless, when we repeated the study without previous therapy, the results could not be confirmed. This shows that Gram-positive bacteria do colonize urethra and/or prostatic ducts, but are not responsible for prostatic infection.
mesh_terms: D000293:Adolescent; D000328:Adult; D006094:Gram-Positive Bacteria / Q000302:isolation & purification / Q000472:pathogenicity*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011472:Prostatitis / Q000209:etiology / Q000382:microbiology*; D013203:Staphylococcal Infections / Q000150:complications; D013212:Staphylococcus epidermidis / Q000302:isolation & purification / Q000472:pathogenicity