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 …

Oct 11, 2025 · 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 …

Besides waste materials, urine also contains surpluses of products necessary for bodily functioning, such as water, sodium chloride, and other substances. Thus in a typical specimen …

Oct 28, 2025 · This is how your urine becomes toxic waste, and why the future of precision medicine might be in the toilet.

May 10, 2021 · Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down …