Other causes can explain why you have had an abnormal pap smear. There are other sexually transmitted infections (STI) that can be blamed, as well as gonorrhea and chlamydia. Yeast infections and bacterial vaginosis will also cause changes in your cervical cells. All of these conditions are treatable.

Can Pap smear detect chlamydia infection?

No. Smear tests (cervical screening) do not test for chlamydia. Cervical screening tests help prevent cervical cancer by checking your cervix (neck of the womb) for abnormal cells or infection with a virus called HPV.

Can STI cause abnormal Pap smear?

An abnormal Pap smear doesn't necessarily mean you have cervical cancer. In most cases, an abnormal Pap test is a result of: A human papillomavirus (HPV) infection. A sexually transmitted infection (STI or STD), such as herpes or trichomoniasis.