Uromancy is a form of divination

Divination

Divination is the attempt to gain insight into a question or situation by way of an occultic standardized process or ritual...

, by reading the bubbles in urine

Urine

Urine is a typically sterile liquid by-product of the body that is secreted by the kidneys through a process called urination and excreted through the urethra. Cellular metabolism generates numerous by-products, many rich in nitrogen, that require elimination from the bloodstream...

 that form when urinating in a pot.

Its origin can be found in medicine, where uroscopy

Uroscopy

Uroscopy is the historic medical practice of visually examining a patient's urine for pus, blood, or other symptoms of disease. It dates back to ancient Egypt, Babylon, and India. It was particularly emphasized in Byzantine medicine....

, the examination of urine, is used as a diagnostic tool. In uromancy it is said that the urine does not only give indications of a person's health, but also foretells the future.

The suffix mancy originates from the ancient Greek word manteia, which means divination.