Uphononongo lubonise ukuba inqwelomoya, uloliwe, ibhasi okanye abakhweli beemoto abahlala behleli kuhambo olungaphezulu kweeyure ezine basengozini enkulu ye-venous thromboembolism ngokubangela ukuba igazi le-venous ligxame, nto leyo evumela amahlwili egazi ukuba enze amahlwili emithanjeni.Ukongeza, abakhweli abathatha iinqwelomoya ezininzi ngexesha elifutshane nabo basengozini enkulu, kuba umngcipheko we-venous thromboembolism awupheli ngokupheleleyo emva kokuphela kwenqwelomoya, kodwa uhlala uphezulu kangangeeveki ezine.

Kukho ezinye izinto ezinokonyusa umngcipheko we-venous thromboembolism ngexesha lokuhamba, ingxelo icebisa, kubandakanywa ukutyeba, ukuphakama okuphezulu kakhulu okanye okuphantsi (ngaphezulu kwe-1.9m okanye ngaphantsi kwe-1.6m), ukusetyenziswa kwezithintelo zomlomo kunye nesifo segazi sefa.

Iingcali zicebisa ukuba ukunyuka nokuhla kwentshukumo ye-ankle yonyawo kunokusebenzisa izihlunu zethole kwaye kukhuthaze ukuhamba kwegazi kwimithambo yemisipha yethole, ngaloo ndlela kuncitshiswe ukuphuma kwegazi.Ukongezelela, abantu bafanele bakuphephe ukunxiba iimpahla ezixineneyo xa behamba, njengoko ezo mpahla zisenokubangela ukuba igazi ligxame.

Ngo-2000, ukusweleka kwebhinqa eliselula laseBritani lisuka kwinqwelomoya elihamba ixesha elide e-Australia lisuka kwi-pulmonary embolism yatsala amajelo eendaba kunye nengqalelo yoluntu kumngcipheko we-thrombosis kubahambi abahamba ixesha elide.I-WHO yasungula iProjekthi ye-WHO ye-Global Hazard Hazards Project kwi-2001, ngenjongo yesigaba sokuqala kukuqinisekisa ukuba ukuhamba kwandisa umngcipheko we-venous thromboembolism kunye nokumisela ubunzima bomngcipheko;emva kokuba kufunyenwe inkxaso-mali eyaneleyo, uphononongo lwesibini lwezigaba luya kuqaliswa ngenjongo yokuchonga amanyathelo othintelo asebenzayo.

Ngokutsho kwe-WHO, iimpawu ezimbini eziqhelekileyo ze-thromboembolism ye-venous yi-vein thrombosis kunye ne-pulmonary embolism.I-Deep vein thrombosis yimeko apho i-blood clot okanye i-thrombus yenza kwi-vein deep, ngokuqhelekileyo kumlenze ongezantsi.Iimpawu ze-thrombosis ye-vein deep ikakhulu ziintlungu, ububele, kunye nokuvuvukala kwindawo echaphazelekayo.

I-Thromboembolism yenzeka xa ihlwili legazi kwimithambo yemilenze engezantsi (ukusuka kwi-deep vein thrombosis) liqhawuka lihambe emzimbeni lisiya emiphungeni, apho libeka khona kwaye livale ukuhamba kwegazi.Oku kubizwa ngokuba yi-pulmonary embolism.Iimpawu ziquka intlungu yesifuba kunye nobunzima bokuphefumla.

I-venous thromboembolism inokubonwa ngokujongwa kwaye inyangwe, kodwa ukuba ayiphathwa, inokubeka ubomi esichengeni, utshilo i-WHO.