Additionally, kidney disease can affect red blood cell production.
Reduced red blood cell levels may contribute to anemia, which can worsen fatigue and decrease energy levels.
People often describe this type of exhaustion as different from ordinary tiredness.
It can feel persistent, overwhelming, and difficult to explain.
Sign #3: Swelling in the Feet, Ankles, or Hands
Healthy kidneys help regulate fluid balance.
When kidney function becomes impaired, excess fluid may accumulate in body tissues.
This can lead to swelling, sometimes called edema.
Common areas include:
Feet
Ankles
Legs
Hands
Face
Some individuals notice that shoes feel tighter than usual.
Others observe swelling around the eyes, especially in the morning.
Fluid retention can occur for many reasons, but persistent swelling should never be ignored.
Sign #4: Puffiness Around the Eyes
Many people assume puffy eyes result from poor sleep or allergies.
While those causes are common, persistent puffiness may occasionally indicate protein leakage through damaged kidney filters.
Healthy kidneys normally keep important proteins in the bloodstream.
When filtration systems become damaged, proteins can escape into the urine.
This process may contribute to swelling around the eyes.
The symptom is often subtle initially.
Because it develops gradually, many people overlook it.
Sign #5: Muscle Cramps
Muscle cramps are common.
Dehydration, exercise, and electrolyte imbalances can all contribute.
However, kidney dysfunction may sometimes disrupt important mineral balances within the body.
Abnormal levels of:
Calcium
Potassium
Sodium
Phosphorus
can increase the likelihood of cramping and muscle discomfort.