What is a dialysis fistula!
If you have been told that you will require dialysis as a treatment for renal failure, your doctor will probably discuss the option of having a fistula created for dialysis access.
A fistula is an enlarged vein (usually in your arm), created by connecting an artery directly to a vein. Connecting the artery to the vein creates much greater blood flow into the vein. As a result, the vein enlarges and strengthens, making inserting of needles for hemodialysis treatments easier.