Your kidneys are vital organs responsible for filtering waste, regulating blood pressure, balancing electrolytes, and maintaining overall fluid balance. When they start to fail, the signs may be subtle at first but can quickly escalate into serious health complications. Early detection of kidney dysfunction is crucial for preventing long-term damage or kidney failure. Below, we detail the most common and overlooked signs that your kidneys may not be working properly.
1. Persistent Fatigue and Low Energy Levels
One of the earliest symptoms of kidney malfunction is unexplained fatigue. Erythropoietin (EPO), a hormone produced by healthy kidneys, promotes the formation of red blood cells. EPO levels fall with deteriorating renal function, resulting in anemia. This decrease in oxygen-carrying red blood cells can cause:
- Chronic tiredness
- Difficulty concentrating
- General weakness
If you’re constantly tired despite adequate rest, it could be a sign of kidney distress.
2. Swelling in the Legs, Ankles, or Feet
Fluid retention from impaired kidney function is frequently shown as lower extremity swelling. This occurs when the kidneys are no longer able to remove excess sodium and water from the body effectively. The resulting edema is especially noticeable in:
- Ankles
- Feet
- Hands
- Face
Swelling that worsens throughout the day or doesn’t improve overnight should be evaluated.
