01
Three ways to reach the blood
Haemodialysis needs repeated access to the bloodstream. A fistula connects an artery to a nearby vein, usually in the arm, so the vein enlarges. A graft uses a short tube when a suitable vein is not available. A catheter sits in a large central vein and can be used sooner, but infection and clotting become more likely the longer it stays.
For many people who will need dialysis for a long time, a working fistula is the access with fewer infections. It still has to be planned early, because a new fistula often needs weeks to mature before it can be needled.
02
How to protect an access
These steps do not replace surveillance at the dialysis unit. They catch changes between sessions.
- Feel the thrill, the soft buzz over the fistula, on the days you are at home
- Avoid blood pressure cuffs and blood tests on that arm unless the dialysis team directs otherwise
- Do not scratch or cut a scab over a recent needle site
- Report prolonged bleeding after dialysis
03
Changes that should not wait
A thrill that has disappeared may mean the access has clotted. The chance of reopening it is better when the dialysis unit knows the same day. A hand that becomes cold, pale, or painful can mean too little blood is reaching the fingers. Fever, redness, or pus needs urgent review because access infection can spread into the bloodstream.
This page is general education about vascular conditions and the way they are usually assessed. It does not diagnose a person or replace a consultation. Decisions about tests and treatment depend on an individual clinical assessment. Nothing on this website promises a particular result, a cure, or freedom from pain.




