A positive urine test for vitamin C is usually harmless and nothing to worry about. Positive urine vitamin C suggests that there is a large amount of vitamin C in the urine, which is related to the fact that you ate a lot of vitamin C-rich fruits and drank vitamin C-containing beverages before the previous day’s checkup. Vitamin C is a kind of water-soluble vitamin, after a large amount of intake of the body is not absorbed part will be metabolized through the kidneys into the urine, so as to eliminate the body, so there will be a positive urine vitamin C test results. However, it should be noted that the presence of a certain amount of vitamin C in the urine will affect the examination of other components of the urine, such as urine red blood cells, urine sugar, urine bilirubin, etc., vitamin C can make these indicators appear false positive, the measurement of vitamin C in the urine on the other components of the test results are important to determine whether the correct value, so once a positive urine vitamin C, the patient is best not to eat or not to drink! Therefore, once the urine vitamin C positive, the patient is best not to eat or drink foods or drinks rich in vitamin C, and repeat the urine routine to determine whether other indicators are normal.