4. Lower Back or Side Pain
Pain near the lower back, sides, or beneath the ribs can indicate:
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Kidney stones
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Kidney infection
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Enlarged or inflamed kidneys
(Usually not sharp spine pain — more of a deep ache on one side.)
5. Persistent Itching
Kidney trouble allows waste toxins to build in the blood → leads to severe itching, especially:
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On legs, arms
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On the back
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All over the body at night
6. Nausea or Loss of Appetite
A buildup of waste can affect digestion, leading to:
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Nausea
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Metallic taste in the mouth
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Loss of appetite
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Bad breath (uremic breath)
7. High Blood Pressure
Kidneys regulate blood pressure. Damaged kidneys cause:
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Uncontrolled or suddenly worsening BP
High BP also worsens kidney damage — a dangerous cycle.
