Actinomyces Israelii in the Genital Tract of Women with and Without Intra‐Uterine Contraceptive Devices

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Abstract
Actinomycosis involving the female genital tract is more common among IUD users than others. The diagnosis is difficult and often delayed. It has been suggested that the finding of Actinomyces-like organisms or A. israelii in cervical smears indicates a risk of developing actinomycosis. A. israelii has not been regarded as a part of the indigenous genital flora. A group of IUD users without symptoms of genital tract infections were compared with a control group without IUD. No Actinomyces-like organisms were found on cytological examination of cervical smears. Immunofluorescent staining and cultures identified A. israelii in 4% of the IUD users and in 3% of the non-users. Serologic precipitin tests for actinomycosis were negative in all women. None developed actinomycosis on follow-up of positive cases. Evidently, A. israelii is a commensal of the female genital tract. The identification of A. israelii alone does not indicate that the patient risks developing actinomycosis. Other methods such as a serology test should be useful in defining the clinical significance of the findings.