17 Signs of Kidney Trouble You Can See or Notice — Don’t Ignore Them
Your kidneys work quietly around the clock. They filter waste and excess fluid from your blood, help control blood pressure, balance electrolytes, support red blood cell production, and help maintain healthy bones.
The problem is that kidney disease can develop gradually without obvious symptoms. In the early stages, many people feel completely normal.
As kidney function becomes impaired, however, certain changes may become noticeable. Some can be seen on the skin or in the bathroom, while others are symptoms you can feel.
The image highlights visible skin changes, but no single skin symptom can diagnose kidney disease. Many of these signs have numerous other causes. What matters is when several symptoms occur together or when a new change persists.
Here are 17 signs worth knowing.
1. Swelling Around the Ankles and Feet
When the kidneys aren't removing enough sodium and fluid, the body may retain excess fluid.
This can lead to swelling, particularly around the ankles, feet, and lower legs.
Swelling can also occur because of heart, liver, or circulation problems, certain medications, or prolonged sitting.
Persistent unexplained swelling should be evaluated rather than automatically blamed on the kidneys.
2. Puffiness Around the Eyes
Some people with kidney disease develop puffiness around the eyes, particularly in the morning.
This can occur when the kidneys allow excessive amounts of protein to pass into the urine, contributing to fluid retention.
However, morning eye puffiness can also result from allergies, lack of sleep, crying, or other common conditions.
3. Changes in Urination
Changes in urination can be an important warning sign.
You may notice that you're urinating:
- More frequently
- Less frequently
- In unusually large amounts
- In unusually small amounts
- More often during the night
These changes can have many causes, including diabetes, urinary infections, medications, prostate problems, and changes in fluid intake.
Persistent changes should be discussed with a healthcare professional.