Ankles and feet
Lower legs
Hands
Around the eyes and face
This swelling may worsen throughout the day and is often more noticeable after long periods of standing or sitting.
When the kidneys cannot remove excess sodium and water efficiently, fluid retention becomes one of the clearest physical signs of dysfunction.
3. Constant Fatigue and Weakness
Feeling unusually tired, even after rest, is another common warning sign.
Kidney problems can cause fatigue for several reasons:
Build-up of toxins in the blood
Reduced production of red blood cells (leading to anemia)
Poor oxygen delivery throughout the body
People often describe this fatigue as:
Persistent exhaustion
Lack of energy
Difficulty concentrating
Feeling weak during simple tasks
This symptom is often mistaken for stress or lack of sleep, which is why kidney issues can go unnoticed for a long time.
4. Back Pain or Pain in the Side (Flank Pain)
Pain in the lower back or sides of the body can sometimes be linked to kidney issues.
This pain is usually:
Located just below the ribs
Felt on one or both sides
Dull or sharp depending on the cause
Possible causes include:
