5. Blood or Foam in the Urine
Changes in urine color and texture are often early indicators of kidney disease.
Why It Happens
- Blood in the urine (hematuria) occurs when damaged kidneys allow red blood cells to leak into the urine.
- Foamy urine indicates excess protein (proteinuria), which healthy kidneys usually prevent.
When to See a Doctor
- If your urine is pink, red, or cola-colored.
- If urine has persistent foam or bubbles, even without forceful urination.
6. Persistent Puffiness Around the Eyes
Swelling or puffiness around the eyes can be an early symptom of kidney disease.
Why It Happens
- Leaking protein in urine reduces the body’s ability to retain fluid, causing swelling around the eyes.
- This puffiness often occurs in the morning and may not go away easily.
When to See a Doctor
- If puffiness persists for weeks.
- If it is accompanied by blurry vision or other eye issues.
7. Muscle Cramps and Twitches
Frequent muscle cramps, spasms, or twitches can indicate kidney dysfunction.
Why It Happens
- Kidney disease disrupts electrolyte balance, leading to low levels of calcium, magnesium, and potassium.
- These imbalances cause muscle contractions, cramps, and spasms.
When to See a Doctor
- If muscle cramps occur frequently and without an obvious cause.
- If cramps are severe or interfere with daily activities.
8. Metallic Taste in the Mouth and Bad Breath
Kidney disease can cause a metallic taste in the mouth or persistent bad breath (ammonia-like odor).
Why It Happens
- Uremia (waste buildup in the blood) affects taste and smell, leading to food tasting “off” or bitter.
- It can cause loss of appetite and weight loss.
When to See a Doctor
- If you experience a persistent metallic taste, despite good oral hygiene.
- If you lose interest in eating meat or other protein-rich foods.
9. High Blood Pressure That Is Hard to Control
The kidneys are essential for blood pressure regulation. When they fail, blood pressure may rise suddenly or become difficult to control.
Why It Happens
- Damaged kidneys struggle to remove excess fluids and regulate salt levels, leading to hypertension.
- High blood pressure further damages the kidneys, creating a dangerous cycle.
When to See a Doctor
- If blood pressure remains high despite medication and lifestyle changes.
- If hypertension is accompanied by headaches or dizziness.
