What does an eGFR (CKD-EPI) value greater than 90 mL/min/1.73 m² mean?

EGFR (CKD-EPI) > 90 mL/min/1.73 m² typically indicates a glomerular filtration rate (GFR) greater than 90 mL/min/1.73 m², reflecting normal kidney filtration function. If any symptoms of discomfort arise, prompt medical consultation is recommended. A detailed explanation follows:

The glomeruli are the core structures within the kidneys responsible for filtering blood—removing excess water, metabolic waste products, and toxins to maintain homeostasis of fluid, electrolytes, and metabolism. An eGFR consistently above 90 mL/min/1.73 m² suggests intact glomerular structure and optimal renal excretory and fluid-regulatory function, enabling efficient elimination of metabolic waste without evidence of kidney injury or impaired filtration. This value is commonly observed in healthy individuals; it may also be sustained in those who maintain adequate hydration and have high metabolic activity—both considered normal physiological findings.

In daily life, maintaining regular sleep-wake cycles is essential; prolonged sleep deprivation and excessive physical or mental fatigue should be avoided to reduce metabolic stress on the kidneys. A light, balanced diet low in salt and saturated fats is recommended. Consistent hydration and scheduled urination habits should be cultivated. Regular moderate-intensity physical activity helps stabilize overall metabolic function. Additionally, routine kidney function assessments are advised to proactively monitor and sustain long-term renal health.