Urine

thumb|upright=0.5|Sample of human urine

Urination is the release of urine from the bladder through the urethra in placental mammals, or through the cloaca in other vertebrates. It is the urinary system's form of excretion. It is also known medically as micturition, voiding, uresis, or, rarely, emiction, and known colloquially by various names including peeing, weeing, pissing, and euphemistically number one. The process of urination is under voluntary control in healthy humans and other animals, but may occur as a reflex in infants, some elderly individuals, and those with neurological injury. It is normal for adult humans to urinat

involuntary urination while asleep

Urolagnia, also known as urophilia, is a paraphilia in which sexual excitement is associated with urine or urination. Etymologically, the term comes from the Greek , meaning 'urine', and , meaning 'lust'. Golden shower is slang for the practice of urinating on another person for sexual pleasure, while the term watersports is more inclusive of other sexual acts involving urine.

various applications of human urine for medicinal or cosmetic purposes

latin saying

Urobilin, also known as urochrome, is the chemical primarily responsible for the yellow color of urine. It is a linear tetrapyrrole compound that, along with the related colorless compound urobilinogen, are degradation products of the cyclic tetrapyrrole heme.

process of training someone, particularly a young child, to use the toilet for urination and defecation

indoor feces and urine collection box for pets

device which aids a female person to urinate while standing upright

urinal designed to be used by women and girls

thumb|People showing a sample of urine to the physician Constantine the African. Uroscopy is the historical medical practice of visually examining a patient's urine to diagnose diseases or medical conditions. It is an ancient technique that involves the analyzing the color, odor, and sometimes composition of urine. It was widely used by physicians to assess a patient's health, with different colors or characteristics of urine thought to correspond to specific illnesses.

cow urine, liquid by-product of metabolism

Urophagia is the consumption of urine. Urine was consumed in several ancient cultures for various health, healing, and cosmetic purposes. People have been known to drink urine in extreme cases of water scarcity; however numerous sources, including the US Army Field Manual, advise against it. Urine may also be consumed as a sexual activity.

test measuring urine flow during urination

'''para-Dimethylaminobenzaldehyde''' is an organic compound containing amine and aldehyde moieties which is used in Ehrlich's reagent and Kovac's reagent to test for indoles. The carbonyl group typically reacts with the electron rich 2-position of the indole but may also react at the C-3 or N-1 positions. It may also be used for determination of hydrazine.

Liquid by-product of metabolism in camels

bottle for urination used in health care

InterPro Family

thumbnail|right|A typical urinometer

14th episode of the 13th season of South Park

Pentosuria, a component of Garrod’s tetrad, is a condition where the sugar L-xylulose, a pentose, presents in the urine in unusually high concentrations. It was characterized as an inborn error of carbohydrate metabolism in 1908. It is associated with a deficiency of L-xylulose reductase, necessary for xylitol metabolism. L-Xylulose is a reducing sugar, so it may give false diagnosis of diabetes, as it is found in high concentrations in urine. However glucose metabolism is normal in people with pentosuria, and they are not diabetic. Patients of pentosuria have a low concentration of the sugar

medical sign

urinating in a public place other than a toilet or urinal

sanitary device in architecture to prevent humans from urinating in corners

Urban legend