Is swollen feet always kidney failure?
No — it also has heart, liver and vein causes. Get it evaluated.
Diagnostics
Swelling (edema) in kidney disease
Why kidney disease causes swelling in the legs and face, and how it is managed.
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Short Answer
When the kidneys fail, extra salt and water build up in the body and leak into the tissues, causing swelling (edema) — most often in the feet, ankles and around the eyes.
Medical Facts
- Damaged kidneys cannot remove enough sodium and water.
- Fluid then collects in the lower body and around the eyes.
- Rapid weight gain between visits is usually fluid, not fat.
Treatment or Donation Options
- Limit salt and fluid as your doctor advises.
- Take diuretics if prescribed.
- Report rapid weight gain to your care team.
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