After drinking rhubarb there may be yellow urine color, which is a normal drug staining, after stopping the relevant drugs, the yellow urine situation can be improved. Some drugs have staining that causes yellow urine, such as clinically used multivitamin tablets or vitamin B tablets, can lead to yellow urine, after stopping the drug and drinking more water, the urine can return to normal, not the condition of the disease, but the normal drug metabolism staining, patients do not need to worry too much. However, if the urine is still yellow after stopping the medication, it is recommended to go to the hospital for examination to rule out other diseases, such as jaundice, where the bilirubin level in the body exceeds the standard and the bilirubin filtered through the kidneys increases, resulting in a yellow urine color. The presence or absence of jaundice. The phenomenon of yellow urine can also occur with low water intake and over-concentration of urine, which is related to the use of drugs.