In hemodialysis, your blood is pumped through a dialysis machine to remove waste products and excess fluids. You are connected to the dialysis machine using a surgically created path called a vascular access, usually referred to as an access. This allows blood to be removed from the body, circulate through the dialysis machine, and then return to the body.
Hemodialysis can be done at a dialysis center or at home. When done in a center, it is generally done three times a week and takes between three and five hours per session. Home dialysis is generally done three to seven times per week and takes between three and ten hours per session (often while sleeping).