urine concentration

Urine concentration refers to how much dissolved substances, like salts and waste products, are present in a volume of urine. When your body needs to conserve water, the kidneys produce more concentrated urine, which appears darker, by reabsorbing more water. Conversely, if you're well-hydrated, the kidneys dilute the urine, making it lighter. This process helps maintain your body's fluid and electrolyte balance, ensuring cells function properly and waste products are efficiently removed. Urine concentration varies based on hydration, health, and other factors, reflecting your body's effort to regulate water and waste.