Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Hydronephrosis
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Hydronephrosis: Distention of the kidney with urine. Hydronephrosis is caused by obstruction of urine outflow (for example, by a stone blocking the ureter).
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