Urine is the fluid excreted by the kidneys of vertebrates to clear the bloodstream of excess water and metabolic by-products including urea, uric acid, and creatinine. In mammals, urine travels from the kidneys via the ureters to the bladder for storage until urination. Urine is liquid waste that your kidneys make to remove excess fluids and waste products from your body.

Understanding the Context

It mostly consists of water, but it also contains waste products, salt and electrolytes. 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 made of water,... Your kidneys make urine by filtering wastes and extra water from your blood.

Key Insights

The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate. 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 body.

Final Thoughts

The composition of urine tends to mirror the water needs of the organism. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body. Urine Color and Odor: What It Reveals About Your Body - WebMD Urine color, odor, and frequency can reveal a lot about your overall health. Learn what is considered healthy and abnormal urine below.