Chlamydia is a common sexually transmitted disease. It is caused by bacteria called Chlamydia trachomatis. It can infect both men and women.YouAreHere:Home→HealthTopics→ChlamydiaInfectionsURLofthispage:https://medlineplus.gov/chlamydiainfections.htmlChlamydiaInfectionsOnthispageBasicsSummaryStartHereDiagnosisandTestsLearnMoreRelatedIssuesSee,PlayandLearnImagesResearchClinicalTrialsJournalArticlesResourcesFindanExpertForYouChildrenWomenPatientHandoutsSummaryWhatischlamydia?Chlamydiaisacommonsexuallytransmitteddisease.ItiscausedbybacteriacalledChlamydiatrachomatis.Itcaninfectbothmenandwomen.Womencangetchlamydiainthecervix,rectum,orthroat.Mencangetchlamydiaintheurethra(insidethepenis),rectum,orthroat.Howdoyougetchlamydia?Youcangetchlamydiaduringoral,vaginal,oranalsexwithsomeonewhohastheinfection.Awomancanalsopasschlamydiatoherbabyduringchildbirth.Ifyou'vehadchlamydiaandweretreatedinthepast,youcangetre-infectedifyouhaveunprotectedsexwithsomeonewhohasit.Whoisatriskofgettingchlamydia?Chlamydiaismorecommoninyoungpeople,especiallyyoungwomen.Youaremorelikelytogetitifyoudon'tconsistentlyuseacondom,orifyouhavemultiplepartners.Whatarethesymptomsofchlamydia?Chlamydiadoesn'tusuallycauseanysymptoms.Soyoumaynotrealizethatyouhaveit.Peoplewithchlamydiawhohavenosymptomscanstillpassthediseasetoothers.Ifyoudohavesymptoms,theymaynotappearuntilseveralweeksafteryouhavesexwithaninfectedpartner.SymptomsinwomenincludeAbnormalvaginaldischarge,whichmayhaveastrongsmellAburningsensationwhenurinatingPainduringintercourseIftheinfectionspreads,youmightgetlowerabdominalpain,painduringsex,nausea,orfever.SymptomsinmenincludeDischargefromyourpenisAburningsensationwhenurinatingBurningoritchingaroundtheopeningofyourpenisPainandswellinginoneorbothtesticles(althoughthisislesscommon)Ifthechlamydiainfectstherectum(inmenorwomen),itcancauserectalpain,discharge,and/orbleeding.Howischlamydiadiagnosed?Therearelabteststodiagnosechlamydia.Yourhealthcareprovidermayaskyoutoprovideaurinesample.Forwomen,providerssometim