Introduction Chlamydia trachomatis infection is usually asymptomatic, affects young, sexually active women, and when not properly treated, can lead to complications such as pelvic inflammatory disease, infertility, and ectopic pregnancy.

Objectives To evaluate the prevalence of C. trachomatis in women classified into different age groups who presented at private clinics in the city of Fortaleza, Brazil.Methods: Data from samples of sexually active women who presented at general gynaecology clinics in the city of Fortaleza, Brazil, were processed using the Hybrid Capture method (Digene ) for the detection of DNA-Chlamydia trachomatis during 2014 and 2015.

Results A total of 11.22% and 8.24% of the women who presented at the clinic were positive for C. trachomatis in 2014 and 2015, respectively. In both years, the highest prevalence in different age groups was observed in women 40 years.

Conclusion During 2014 and 2015, the prevalence of Chlamydia trachomatis was high in the city of Fortaleza, especially in women.