Ngokuqhelekileyo ukhulelwe ukulahlekelwa ngumntu; i- chromosomal engafanelekanga eyenza ukuba uninzi lwabantu abangabhubhiyo. Kwaba nabasetyhini benendlela yokuphila enempilo banakho kwaye banokulahlekelwa ngamathambo. Ezinye izinto zokuphila, nangona kunjalo, zibonakala ziphakamisa umngcipheko wokukhulelwa kwesisu kunye nokuzala. Ikhonkco ngqo ayisoloko iqondwa. Ngokuqhelekileyo, akukho mntu unokuxelela ukuba nayiphi na into ebangela ukulahlekelwa ngokukodwa, kodwa ukuphepha izinto ezinobungozi yindlela enye encinci yokunciphisa ingozi yokukhulelwa.
Ukubhema kunye nomsi wesibindi
Ikhonkco phakathi kokutshaya kunye nokulahleka kwamathambo kuxabana kwaye akukaqondwa kakuhle, kodwa uphando oluninzi lufumene iziqulatho phakathi kobungozi bokubhema umsila kunye nomngcipheko wokulahleka. Ukugwema umsi wesigareko mhlawumbi yindlela ebaluleke kakhulu yokuba abafazi banokunciphisa ukukhulelwa kwesisu kunye nobungozi besifo (nakuba, kwakhona, akukho nto iya kuphelisa umngcipheko ngokupheleleyo, kwaye nabasetyhini abangenayo ingozi yokukhulelwa komzimba bangakwazi ukukhulelwa).
Utywala
Ngamanye amaxesha, ukusela okulula ngaphambi kokukhulelwa mhlawumbi kungathinteli umngcipheko wokukhulelwa kwesisu, kwaye uphando olutsha lufumene ukuba ukusela kakhulu kamva okanye kabini ngaphambi kokufumanisa ngokukhulelwa kungabangela ukukhulelwa kwesisu.
Nangona kunjalo, ukutyiwa rhoqo kwindleko yotywala - ngokukodwa xa ukhulelwe-kuhambelana nomngcipheko ophezulu wokukhulelwa kwesisu.
Ukuhlukunyezwa kwesiyobisi
Ngaphandle kokusela utywala, ukusebenzisa ezinye iziyobisi kunokunxulumene nomngcipheko ophezulu wokukhulelwa kwesisu kunye nokuzalwa komntwana. I-Marijuana inokunciphisa ukunikezelwa kwe-oksijini kwintsana, ikhulise umngcipheko wokubeleka ophantsi, ukuhanjiswa kwangaphambili, kunye nokuzalwa. I-Cocaine ikhulisa umngcipheko wokungabikho komngcipheko kunye nomngcipheko wokuphazamiseka kwe- placental , njengokuba usebenzisa i-methamphetamines.
Ukunyanya
Kukho idatha ebonisa ukuba ukukhuluphala komama kunokunyusa ingozi. Abasetyhini kufuneka basebenze ukugcina isisindo esifanelekileyo ngaphambi kokukhulelwa.
IMicrosoft Medication
Nangona zisetyenziselwa ukukhathazeka kwezempilo, izidakamizwa ezininzi zonyango zidibene nomngcipheko wokukhulelwa kwesisu kunye nokuzalwa komntwana. Omnye umzekelo oqhelekileyo yi-ACE inhibitors, uhlobo lwemithi yexinzelelo lwegazi. Iziyobisi kunye ne-FDA izikhundla zokukhusela okukhuselekileyo kwiCandelo D okanye kwiCandelo X linokudibana neengozi yokukhulelwa kwengozi.
Caffeine
Ikhonkco phakathi kwe-caffeine kunye nokukhulelwa komzimba kuyimpikiswano; ezinye iifundo zifumene unxibelelwano ngokumodareyitha ukuya kwi-caffeine enzima. Ezinye izifundo ziphikisana nale nxu lumano, kwaye abanye bathi ikhonkco phakathi kwe-caffeine kunye nokuphuphuma kwesisu kunokuthi zichaze ngokutyekela kwikhofi edlalwa ngabasetyhini abasele baxakeke (bavame ukufumana isicathulo esincinci kunye nokugula kwasekuseni.)
Kuze abaphenyi baqonde kangcono ukuxhamla phakathi kwe-caffeine kunye nokuphuphuma kwesisu, kubonakala kunengqondo ukuphepha ukukhanya okukhulu kwe-caffeine ngelixa ukhulelwe nje ukuba lukhusele.
Iimeko ezingapheliyo zeMpilo
Ngenxa yokunakekelwa kokubeleka okwaneleyo, abafazi abanempilo engapheliyo banethuba elihle lokuba nokukhulelwa okuqhelekileyo. Kodwa ezinye iimeko zempilo, ezifana nesifo sikashukela kunye ne-systemic lupus erythematosus, kunokuthetha ukunyuka kwesisu okanye umngcipheko wokubeletha xa umfazi ekhulelwa xa iimeko zingekho phantsi kolawulo.
Ukutya ukutya okungafunekiyo ngexesha lokukhulelwa
UListeria kunye nezinye izifo ezithintekayo zokutya kubaktheka zingabangela ukukhulelwa kwesisu. Kuyinto entle ukuba abafazi baphephe ukungabikho, ukusikwa kunye nosondlo ngexesha lokukhulelwa.
Iimveliso zeChimpotic Chemical
Ezinye iikhemikhali, ezinjengeentlobo zezilwanyana ezibulala izidakamizwa kunye nezinye iifumikhali ze-petrokim, ziyaziwa ngokwandisa umngcipheko wokukhulelwa kwesisu. Abasetyhini basebenza ngeekhemikhali, kunye nabasetyhini abasebenzisana nawo malunga neekhemikhali, banokwandisa ukulahleka kokukhulelwa.
> Imithombo:
> Umbutho waseMelika wokukhulelwa, "Ukusebenzisa iziyobisi ezingekho mthethweni ngexesha lokukhulelwa. "Meyi 2007.
> Umbutho waseMelika wokukhulelwa, "Yiyiphi i-Scoop yangempela kwi-caffeine ngexesha lokukhulelwa." Agasti 2007.
> Figa-Talamanca, Irene. "Iziganeko zobungozi kunye nempilo yokuzala yabasetyhini." Ngonyango luka-2006.
> I-Rasch, V, "I-cigarette, utywala, kunye nokusetyenziswa kwe-caffeine: izinto ezinobungozi bokukhupha isisu." I- Acta Obstetrics ne-Gynecology Scandinavia ngo- 2003.