KIDNEY DISEASE
Kidney disease often starts quietly, and many people do not notice symptoms until kidney function has already worsened.
Common warning signs include facial puffiness, swollen feet or ankles, foamy or dark urine, less urine than usual, tiredness, shortness of breath, nausea or poor appetite, itchy skin, and trouble concentrating.
Common warning signs
- Facial puffiness
- Puffiness around the eyes or face can happen when the kidneys leak protein or the body holds on to fluid.
- Swollen feet and ankles
- Kidney problems can cause salt and water retention, leading to swelling in the legs, feet, or ankles.
- Foamy or dark urine: Foamy urine can suggest protein leaking into the urine. Dark, red, or cola-colored urine can sometimes mean blood in the urine and should be checked.
- Decreased urination
- Some people pass less urine than usual, especially in more advanced or acute kidney problems.
- Fatigue or weakness
- Kidney disease can make people feel drained or weak, sometimes because of anemia or buildup of waste products in the body.
- Shortness of breath: This can happen if extra fluid builds up or if anemia develops. New or worsening breathlessness needs medical attention.
- Nausea or loss of appetite
- As kidney function worsens, waste products can build up and cause poor appetite, nausea, or vomiting.
- Itchy skin: Persistent dry itchy skin can happen in chronic kidney disease, especially in later stages.
- Difficulty concentrating: Some people notice brain fog, poor concentration, or confusion when kidney disease becomes more significant.
Important correction
- Lower back pain is not one of the classic main warning signs of chronic kidney disease
- Kidney disease often causes swelling, urine changes, fatigue, itching, nausea, and breathlessness. Pain is more suggestive of other kidney problems such as stones, infection, or blockage, rather than typical chronic kidney disease itself. This is an inference based on symptom patterns in major kidney disease references.
Important note
Early kidney disease may cause no symptoms at all. That is why blood and urine tests are very important, especially in people with diabetes, high blood pressure, or a family history of kidney disease.
When to see a doctor
- Swelling of the face, feet, or ankles
- Repeated foamy urine or blood/dark urine
- Ongoing fatigue, nausea, or itching
- Shortness of breath
- Reduced urination or worsening confusion
These symptoms do not always mean kidney disease, but they should not be ignored.
Medical disclaimer
This note is for general education only and is not a diagnosis. If you have swelling, foamy or bloody urine, reduced urination, shortness of breath, or ongoing fatigue, please consult a qualified doctor for proper evaluation.
