The authors analyse in the present study the results of the examination of 309 female patients for chlamydial infection, using Chlamyset Antigen (Orion Diagnostica--Finland) and Chlamydiasyme Diagnostic Kit (Abbott Labs--USA). Chlamydial antigen was found in the endocervix of 15.2% of the examined cases. Comparing the enzyme immunomethod Chlamydiasyme with the immunofluorescent method Chlamyset Antigen the authors found 94.4% diagnostic accuracy.