The phrase “your kidneys are screaming for help” is a dramatic way to describe possible warning signs, but kidney problems often develop quietly. Many people do not notice symptoms until kidney function has already declined.
Your kidneys help remove waste, balance fluids, control blood pressure, and support healthy blood production. If they are not working properly, certain changes may appear.
17 possible signs of kidney problems
1. Changes in urination
- Urinating more or less than usual
- Needing to urinate more often, especially at night
- Difficulty starting or stopping urination
2. Foamy urine
Excess foam may sometimes be linked to protein leaking into the urine.
3. Blood in the urine
Pink, red, or dark urine should be checked by a healthcare professional.
4. Swelling in the feet, ankles, or legs
Kidney problems can cause fluid buildup, leading to puffiness.
5. Puffiness around the eyes
Especially noticeable after waking up.
6. Persistent fatigue
Reduced kidney function can contribute to anemia and a buildup of waste products that may cause tiredness.
7. Trouble concentrating
Some people experience difficulty with focus or mental clarity.
8. Loss of appetite
Changes in the body’s chemistry can affect hunger.
9. Nausea or vomiting
More common in advanced kidney problems.
10. Itchy or dry skin
Waste and mineral imbalances may contribute to persistent itching.
11. Muscle cramps
Electrolyte changes may affect normal muscle function.
12. Shortness of breath
Fluid buildup or anemia related to kidney disease may contribute.
13. High blood pressure
Kidney disease and high blood pressure can worsen each other.
14. Bad taste in the mouth or unusual breath odor
Waste buildup may sometimes affect taste and breath.
15. Back or side discomfort
Some kidney conditions can cause pain, though many kidney problems do not.
16. Unexplained weight changes
Rapid weight gain may be related to fluid retention, while weight loss can occur with illness.
17. Abnormal kidney test results
Blood tests showing changes in:
- Creatinine
- eGFR (estimated kidney filtration)
- Urine protein levels
can help identify kidney problems early.
Who is more at risk?
Kidney disease risk is higher with:
- Diabetes
- High blood pressure
- Heart disease
- Family history of kidney disease
- Smoking
- Older age
- Certain medications or frequent use of some pain relievers
