Dichorionic diamniotic twins (DCDA: two placentas, two amniotic sacs) account for approximately 80% of all twins and this includes 10% of twins resulting ...PrintPDFNavigationTop...IntroductionTypesofTwinsDefinedByTypeofPlacentationAndAmnionicityModeAndTimeofDeliveryFirstStageofLaborSecondStageofLabor:DeliveryThirdStageofLaborCesareanSectionForTwinsPracticeRecommendationsReferencesStudyAssessment–OptionalYourFeedbackThischaptershouldbecitedasfollows:LemmonB,PereiraS,Glob.libr.women'smed.,ISSN:1756-2228;DOI10.3843/GLOWM.414003TheContinuousTextbookofWomen’sMedicineSeries–ObstetricsModuleVolume11LaboranddeliveryVolumeEditor:DrEdwinChandraharan,DirectorGlobalAcademyofMedicalEducationandTraining,London,UKChapterDeliveryofTwinsFirstpublished:February2021AUTHORSBernadetteLemmon,BM,BchRegistrarinObstetricsandGynaecology,KingstonHospitalNHSFoundationTrust,KingstonuponThames,UKSusanaPereira,MDConsultantObstetricianandSub-specialistinMaternal-FetalMedicineKingstonHospitalNHSFoundationTrust,KingstonuponThames,UKStudyAssessmentOptionBycompleting4multiple-choicequestions(randomlyselected)afterstudyingthischapterreaderscanqualifyforContinuingProfessionalDevelopmentawardsfromFIGOplusaStudyCompletionCertificatefromGLOWMSeeendofchapterfordetailsINTRODUCTIONWorldwide2–3%ofalllivebirthsaremultiples,1themajorityofthese(97%)beingtwins.2Theincidenceoftwinpregnanciesisincreasingduetotheuseoffertilitydrugsandadvancingmaternalageattimeofpregnancyobservedinwell-resourcedcountries.Itisknownthatwithamaternalageofover35thereisanincreasedrateoftwinning,3andupto24%ofsuccessfulIVFcyclesendinamultiplepregnancy.1Thisissignificantasbothmaternalandperinatalmortalityandmorbidityishigherintwincomparedtosingletonpregnancies4(Tables1and2).Twinpregnanciesaremorelikelytobecomplicatedandsorequiremoreintensiveantenatalmonitoringaswellasspecializedintrapartumcare.Ideallythecareofatwinpregnancyshouldbebyamultidisciplinaryteamwithexperienceofthesepregnancies.Thischapterfocusesonrecommendationsforthecareofwomenwit