<Table> <Tr> <Th_colspan="2"> Chlamydia infection </Th> </Tr> <Tr> <Th> Synonyms </Th> <Td> Chlamydia </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Pap smear showing C. trachomatis (H&E stain) </Td> </Tr> <Tr> <Th> Specialty </Th> <Td> Infectious disease, gynecology, urology </Td> </Tr> <Tr> <Th> Symptoms </Th> <Td> None, vaginal discharge, discharge from the penis, burning with urination </Td> </Tr> <Tr> <Th> Complications </Th> <Td> Pain in the testicles, pelvic inflammatory disease, infertility, ectopic pregnancy </Td> </Tr> <Tr> <Th> Usual onset </Th> <Td> Few weeks following exposure </Td> </Tr> <Tr> <Th> Causes </Th> <Td> Chlamydia trachomatis spread by sex or childbirth </Td> </Tr> <Tr> <Th> Diagnostic method </Th> <Td> Urine or swab of the cervix, vagina, or urethra </Td> </Tr> <Tr> <Th> Prevention </Th> <Td> Not having sex, condoms, sex with only one non--infected person </Td> </Tr> <Tr> <Th> Treatment </Th> <Td> Antibiotics (azithromycin or doxycycline) </Td> </Tr> <Tr> <Th> Frequency </Th> <Td> 4.2% (women), 2.7% (men) </Td> </Tr> <Tr> <Th> Deaths </Th> <Td> ~ 200 (2015) </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Chlamydia infection </Th> </Tr>

What is a complication of untreated chlamydial infections
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