15 Deadly Kidney Signs You Must Catch Early

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Swelling in Ankles, Feet, or Hands
One of the kidneys’ primary functions is fluid balance. When they stop working properly, excess fluid has nowhere to go and collects in tissues.

This results in swelling, also called edema, which is most noticeable in the ankles, feet, and hands. Over time, the puffiness may worsen and become uncomfortable, signaling the need for medical attention.

Blood in Urine
Healthy kidneys keep blood cells inside the body while filtering out waste. When blood leaks into urine, it could be a warning sign of serious issues such as infection, kidney stones, or even cancer.

If you notice pink, red, or cola-colored urine, never ignore it. This symptom always requires a medical evaluation.

Foamy or Bubbly Urine
Occasional bubbles in urine may be harmless, but persistent foamy urine is a cause for concern. It usually indicates protein leakage into the urine—a classic marker of kidney damage.

Protein should remain in the blood to support muscle, repair tissue, and maintain body functions. Losing it through urine is a sign your kidneys are struggling.

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