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Kidneys regulate fluid and sodium balance. When they’re struggling, excess fluid accumulates, leading to swelling (edema), particularly in your feet, ankles, and hands. If your shoes suddenly feel tighter or your rings leave marks, your kidneys may be involved.
4. Foamy or Bubbly Urine
Occasional bubbles in urine are harmless. But persistent foaminess could signal excess protein leakage (proteinuria) or even underlying kidney disease. Pay attention to changes in your urine’s appearance—it’s one of the clearest windows into kidney health.
5. Metallic Taste in the Mouth
A buildup of waste products in the blood can cause a strange metallic taste, loss of appetite, and bad breath (uremic breath). If your food suddenly tastes off and you have no explanation, your kidneys might be behind it.
6. Itchy, Dry Skin
