Urine white as rice water may be caused by urinary tract infection, urinary tract stones, celiac disease and other factors. 1. Urinary tract infection: If bacteria enter the urethra, they may travel up into the bladder, kidneys, etc., causing a series of infections, and the infections may cause the mucous membrane of the urinary system to be necrotic and detached, and these detached mucous membrane cells are mixed with the urine, resulting in urine as white as rice water. 2. urinary stones: for example, kidney stones, bladder stones, etc., after treatment, there may be small particles, small fragments of stones, when these stones fall behind the number of more, may lead to cloudy white urine, like rice water. 3. Celiac Disease: Under normal circumstances, celiac disease will generally enter the blood system, when there is kidney disease, blood flow through the kidneys for filtration, celiac disease may be mixed in the urine, resulting in white urine like rice water. When the urine is white like rice water, there may be other reasons, it is recommended to actively seek medical advice, under the guidance of a professional physician for diagnosis and treatment.