In advanced kidney failure such as End-stage renal disease, patients may require dialysis.
To prepare for dialysis, doctors often create an arteriovenous (AV) fistula in the arm. This procedure intentionally enlarges veins to allow repeated access for treatment. These veins become:
More visible
Thicker
Sometimes slightly raised
This is a treatment-related change — not a symptom of kidney disease itself.
Red Flags That Actually Warrant Medical Attention
Rather than focusing on vein visibility, pay attention to the following warning signs:
Persistent swelling in hands, ankles, or around the eyes
Decreased or excessive urination
