Igwe hemodialysis bụ igwe a na-eji dialysis na-enyocha ọbara onye ọrịa iji wepụ oke mmiri na ihe mkpofu mgbe akụrụ mebiri emebi, arụghị ọrụ ma ọ bụ mfu. Enwere ike were igwe dialysis n'onwe ya dị ka akụrụ arụrụ arụ. A na-akwado dialysis concentrate na dialysis mmiri ka ọ bụrụ dialysate tozuru oke site na sistemụ ọkọnọ dialysate, a na-eji ọbara onye ọrịa ewepụtara na sistemụ nleba anya ọbara maka mgbasa nke solute, permeation na ultrafiltration site na hemodialyzer ; Ọbara onye ọrịa na-agafe n'ọbara mgbe emechara ihe usoro mkpu nlekota na-alaghachi n'ahụ onye ọrịa, na mmiri mmiri mgbe dialysis na-ahapụ ya na sistemu mmiri dialysis dị ka mmiri mkpofu; okirikiri ahụ na-aga n'ihu na-emecha usoro dialysis niile.