What causes Blockage in Fistula?
The most prevailing cause of the blockage of the fistula is stenosis. According to the research and recent surveys, it is evident that 78% of early AV fistula failures are associated with stenosis.

A dialysis fistula can get blocked when blood flow is slowed or stopped due to the following reasons:
- Injury or Trauma to the Fistula Site
- Narrowing of Blood Vessels
- Improper Needle Insertion
- Low Blood Pressure
- Blood Clot