Sugar (glucose) is usually present in the urine at very low levels or not at all. Abnormally high amounts of sugar in the urine, known as glycosuria, are usually the result of high blood sugar levels. High blood sugar usually occurs in diabetes, especially when untreated.
When the blood sugar is high, there is too much sugar in the fluid leaving the kidney to be reabsorbed, so some sugar passes into the urine.Sugar in the urine can be detected in the laboratory or is easy to detect at home with a urine dipstick test.
This video explains how to detect the presence of sugar in the given sample of urine.