摘要：Problem statement: There are some documents which support the role of some certain infections such as Chlamydia trachomatis in spontaneous abortion. As there were not data about role this bacterium in abortion in this area of IRAN, this study was conducted to evaluate the prevalence of Chlamydia trachomatis in women with abortion and compare it with healthy women with no previous history of abortion. Approach: This case-control study was carried out in Shariatee hospital of Hormozgan University of medical sciences, during 2004-2005. A number of 220 women with definite diagnosis of previous abortion and 200 matched women with normal full term delivery and negative history of miscarriage as controls were studied as case and control groups. All obtained PAP smears from the case and the control groups were then tested using Immunoflourescent method for detection of Chlamydia trachomatis . Data was analyzed, using SPSS software (chi square and t-test). Results: The prevalence of positive direct immunofluorescent test on PAP smears indicating the presence of Chlamydia trachomatis was 56 (25.45%) in women with abortion comparing to 13 (5.20%) in women in control group, the difference was significant (p = 0.0001). Conclusion: This study showed Chlamydia trachomatis is an important causative agent for abortion in this area of IRAN.
