
Urine - Wikipedia
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 …
Urine: Urination, Composition, Production, Color & Odor
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 …
Urine | Definition, Composition, & Facts | Britannica
Nov 11, 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 …
The Urinary Tract & How It Works - NIDDK
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.
Urine Color and Odor: What It Reveals About Your Body - WebMD
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 …
Urine color - Symptoms and causes - Mayo Clinic
Oct 11, 2025 · Foods and medicines can change the color of urine. But a color change also could be a sign of disease.
24.3A: Overview of Urine Formation - Medicine LibreTexts
Urine is formed in three steps: filtration, reabsorption, and secretion. Filtration involves the transfer of soluble components, such as water and waste, from the blood into the glomerulus.
Pee Science: What Your Urine Says About Your Health
Jul 27, 2025 · Urine offers a direct window into the body’s internal workings. This readily available bodily fluid provides insights into hydration levels, dietary influences, and even potential health …
Understanding the Importance of Urine Color | Urology …
Typically, if your urine ranges in color from clear to light yellow, that means your body has had plenty of water. The darker your urine color, the more dehydrated you are. It’s not uncommon …
Urine color chart: Healthy colors and when to seek help
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 …