Urine, excreted by the kidneys, is a liquid containing excess water and water-soluble nitrogen-rich by-products of metabolism including urea, uric acid, and creatinine, which must be cleared …

Jan 14, 2025 · Urine is liquid waste that your kidneys make to remove excess fluids and waste products from your body. It mostly consists of water, but it also contains waste products, salt …

Feb 19, 2025 · But the basic details of your urine — color, smell, and how often you go — can give you a hint about what’s going on inside your body. Pee is your body’s liquid waste, mainly …

Jan 10, 2023 · Foods and medicines can change the color of urine. But a color change also could be a sign of disease.

Apr 9, 2025 · Some urine color changes may be a sign of an infection or a problem with the liver or kidneys. This article looks at what different urine colors may mean and when to contact a …

Describes how the urinary tract works, why it’s important, what affects the amount of urine produced, and how to keep the urinary tract healthy.

Sep 27, 2025 · Urine, liquid or semisolid solution of metabolic wastes and certain other, often toxic, substances that the excretory organs withdraw from the circulatory fluids and expel from …