If your kidneys aren’t working properly, the body may show signs that are easy to overlook. Kidney problems can develop gradually, and some people have few symptoms until the condition becomes more advanced. These signs can have many other causes too, so they are not a diagnosis by themselves.
10 Possible Signs of Kidney Problems
- Changes in urination
- Urinating much more or less than usual, especially sudden changes.
- Foamy or bubbly urine
- May occur when protein leaks into the urine.
- Blood in the urine
- Urine that looks pink, red, or tea-colored should be checked.
- Swelling (fluid retention)
- Puffiness around the eyes or swelling in the feet, ankles, hands, or legs.
- Persistent tiredness
- Kidney problems can contribute to anemia and low energy.
- Shortness of breath
- Fluid buildup or anemia may affect breathing.
- Itchy or dry skin
- Waste buildup and mineral imbalances can contribute to itching.
- Nausea, poor appetite, or a metallic taste
- Waste products accumulating in the blood may affect digestion and taste.
- Muscle cramps
- Changes in minerals such as calcium and phosphorus can contribute to cramps.
- High blood pressure
- Kidney problems can both cause and worsen high blood pressure.
When to seek medical advice
Contact a healthcare professional if you notice blood in urine, sudden changes in urination, persistent swelling, unexplained fatigue, or ongoing symptoms—especially if you have risk factors such as diabetes, high blood pressure, heart disease, or a family history of kidney disease.
Simple tests, including blood tests (such as creatinine/eGFR) and urine tests, can help assess kidney function.
