[Actinomyces-like organisms in users of intrauterine contraception].

Actinomyces-like organisms (ALO) were found in 6.9% of cervical smears in 2133 IUD users. The chance of having co-infection with Trichomonas vaginalis was 2.7 times higher in women with ALO than in ALO negative women. The proportion of IUD users with ALO in cervical smears increased with the duration of the IUD use. A total of 108 IUD users with ALO were compared with the same number of IUD users without ALO in cervical smears. The women in the two groups were matched for the duration of the IUD use. During the IUD use the women with ALO had PID and vaginitis significantly more frequently than ALO negative women. No difference was found regarding the type of the IUD used in women with ALO in cervical smears compared to controls.