Does chlamydia cause abnormal cells in a pap smear test?

Abnormal....: Cells can be seen on a pap if inflammation is present. Chlamydia will cause inflammation, so yes, in a sense. There are lots of different kinds of abnormal paps so if you were told that you have an abnormal pap and need a procedure to figure out why, you should get that done. Do not assume it was from chlamydia. Also don't assume that you have chlamydia because your pap is abnormal. Good luck!