Sheep placentaPlacenta geneticsPlacental DNA fatherPlacental DNA mother or childPlacenta encapsulation ACOGCDC placenta encapsulationPlacental DNA vs fetal DNAGroup B strep in placentaPlacenta developmentPlacenta encapsulation with GBSplacenta中文the placenta日本the placenta胎盤素Retained placentaplacenta delivery中文

What complications can affect the placenta? - NHS

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Low-lying placenta ... As your pregnancy progresses, your womb expands and this affects the placenta's position. The area where the placenta is attached usually ... Skiptomaincontent Home Pregnancy Labourandbirth Whathappensinlabourandbirth Backto Whathappensinlabourandbirth Whatcomplicationscanaffecttheplacenta? Complicationsthatcanaffecttheplacentaduringpregnancyorchildbirthinclude:low-lyingplacentaretainedplacenta–whenpartoftheplacentaremainsinthewombaftergivingbirthplacentalabruption–whentheplacentastartstocomeawayfromthewallofthewombThesecomplicationsaren'tcommon. Low-lyingplacentaAsyourpregnancyprogresses,yourwombexpandsandthisaffectstheplacenta'sposition.Theareawheretheplacentaisattachedusuallystretchesupwards,awayfromyourcervix.Iftheplacentastayslowinyourwomb,neartoorcoveringyourcervix,itmayblockthebaby'swayout.Thisiscalledlow-lyingplacentaorplacentapraevia.Itaffectsabout1inevery200births,butinmostcasesthecervixisnotcompletelycovered.Thepositionofyourplacentawillberecordedatyour18-to21-weekultrasoundscan.Ifyourplacentaissignificantlylow,you'llbeofferedanextraultrasoundscanlaterinyourpregnancy(usuallyatabout32weeks)tocheckitspositionagain.For9inevery10women,theplacentawillhavemovedintotheupperpartofthewombbythispoint.Iftheplacentaisstilllowinyourwomb,there'sahigherchancethatyoucouldbleedduringyourpregnancyorduringyourbaby'sbirth.Thisbleedingcanbeveryheavyandputyouandyourbabyatrisk.Youmaybeadvisedtocomeintohospitalattheendofyourpregnancysoemergencytreatment(suchasabloodtransfusion)canbegivenveryquicklyifyoubleed.Iftheplacentaisnearorcoveringthecervix,yourbabycan'tbedeliveredthroughthevagina,soa caesareansectionwillberecommended.Alow-lyingplacentacanbeassociatedwithpainless,brightredbleedingfromthevaginaduringthelast3monthsofpregnancy.Ifthishappenstoyou,contactyourmidwifeorGPimmediately. RetainedplacentaAfteryourbaby'sborn,partoftheplacentaormembranescanremaininthewomb.Thisisknownasretainedplacenta.Ifuntreated,aretainedplacentacancauselife-threateningbleeding.Breastfeedingyourbabyassoonaspossibleafterthebirthcanhelpyourwombcontractandpushtheplacentaout.Yourmidwifemayalsoaskyoutochangeyourposition(forexample,bymovingtoasittingorsquattingposition).Insomecases,youmaybegivenaninjectionofamedicinetohelpyourwombcontract.Ifthesemethodsdon'twork,youmayneedanoperationtoremovetheplacenta. PlacentalabruptionPlacentalabruptionisaseriousconditioninwhichtheplacentastartstocomeawayfromtheinsideofthewombwall.Itcancausestomachpain,bleedingfromthevaginaandfrequentcontractions.Itcanalsoaffectthebaby,increasingtheriskofprematurebirth,growthproblemsandstillbirth.It'snotclearwhatcausesplacentalabruption,butfactorsthatincreasetheriskincludeinjurytotheabdominalarea,smoking,cocaineuseandhighbloodpressure.Ifyou'renearyourduedate,thebabywillneedtobebornstraightawayanda caesareansection mayberecommended.Butifthebaby'sveryprematureandtheabruptionisminor,youmaybekeptinhospitalforcloseobservation.AlwaysspeaktoyourmidwifeorGPifyou'reconcernedaboutanyaspectofyourhealthwhenyou're pregnant.YoucanalsocallNHS111. FurtherinformationVaginalbleedinginpregnancyAntenatalcare Morein Whathappensinlabourandbirth Thestagesoflabourandbirth Tipsforyourbirthpartner Givingbirthtotwinsormore Painreliefinlabour Episiotomyandperinealtears Forcepsorvacuumdelivery Whathappensifyourbabyisbreech? Whatcomplicationscanaffecttheplacenta? Pagelastreviewed:26September2018 Nextreviewdue:26September2021

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