### Human:\nhow long can you be infected with chlamydia. is it possible that my boyfriend had chlamydia for a awhile and i didn't get infected right away? he cheated on me in january and i had my yearly exam at the end of march is it possible i didn't get infected right away or that it didn't show up when i had my yearly exam?\n\n### Assistant: hi sorry to say but chlamydia can stay hidden in men for years before it re-emerges so your b/f could have had it in his system for sometime. do hope this helps you good luck ps you can google can chlamydia stay hidden or with "in men"