Anorectal Abscesses Bacteriology and the Antibiotics Susceptibility Testing


background: Anorectal abscesses are a common surgical problem, and themost common disease of the anorectum.Objectives: to identify the microorganisms commonly causing the anorectalabscess and the drugs of chioce for treating these infections.Materials and Methods: the patients who were admitted in Hilla Teaching GeneralHospital during a period of one year from December 2001 to December 2002 wereprospectively studied. The aspirated pus was cultivated aerobically and the isolatedmicroorganisms were tested for their sensitivity to commonly prescribed antibiotics.Results: fifty two patients 42 males and 10 females were studied. The most frequentlyisolated micro-organisms were Proteus vulgaris (30.76%), Esch.Coli (13.46%) andKlbesiella spp. (9.61%). The sensitivity pattern was that the cephalosporin's andaminoglycosides (Gentamycin) were the most potent antibacterial against Proteus andStaph aureus.Conclusion: Anorectal abscesses are most commonly caused by Proteus vulgaris andStaph aureus which mainly respond to cephalexin and gentamycin.