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Kidney Disease: How Your Urine Can Reveal Hidden Problems
Published: Oct 13, 2023
Kidney disease often develops quietly, with few early symptoms. But your urine can hold important clues about your kidney health.
Protein Power
One key sign of kidney trouble is protein in the urine, called proteinuria. Healthy kidneys keep protein in your blood, so its presence in urine can indicate damage to the kidney's filtering system. Persistent proteinuria is a red flag for kidney disease.
Cellular Clues
Microscopic examination of urine can reveal important cells. Red blood cells may indicate inflammation or damage. White blood cells might suggest infection. And kidney cells in urine could point to serious kidney injury.
Crystal Clear
Certain crystals in urine can be normal, but others may indicate problems. Calcium oxalate crystals, for example, are associated with kidney stones. Cystine crystals can reveal a rare genetic disorder. Your doctor can identify these crystals under a microscope.
Foam Factor
Excessively foamy urine that doesn't go away after flushing can be a sign of protein in the urine. While a little foam is normal, persistent foaminess should be checked out as it could indicate kidney issues.
Frequently Asked Questions
Yes, early stages often have no noticeable signs.
Ask your doctor, but annual check-ups often include urinalysis.
Yes, diabetes is a leading cause of kidney disease.
The Bottom Line
Regular urine tests can catch kidney problems early, when treatment is most effective.
References
- National Kidney Foundation. About Chronic Kidney Disease. https://www.kidney.org/atoz/content/about-chronic-kidney-disease
- Cavanaugh C, Perazella MA. Urine Sediment Examination in the Diagnosis and Management of Kidney Disease: Core Curriculum 2019. Am J Kidney Dis. 2019;73(2):258-272.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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