9 Warning Signs Your Kidneys Are Failing | Tests to Avoid Dialysis

eyes in the morning can also signal protein loss through the kidneys.

2. Persistent Fatigue or Brain Fog
Failing kidneys produce less erythropoietin, a hormone that signals your body to make red blood cells. Low red blood cell count = anemia = constant tiredness, weakness, or trouble concentrating.

3. Changes in Urination
Watch for:

Foamy urine (sign of protein leakage)
Dark, pink, or cola-colored urine (blood in urine)
Frequent urination at night (nocturia)
Difficulty urinating or very little output
These aren’t “normal aging”—they’re red flags.

4. Persistent Itching or Dry Skin
When kidneys can’t remove waste and excess phosphorus, toxins build up in the blood, causing severe, unrelenting itchiness—often on the back, arms, or legs.

see the continuation on the next page

5. Metallic Taste in Mouth or Ammonia Breath
Known as “uremic fetor,” this occurs when waste accumulates in the blood (uremia). Food may taste off, and you might lose