It appears that you drink a lot of water but your urine is yellow. First, consider that it may be due to a disease. In diseases such as jaundice or obstructive jaundice or hemolytic jaundice, patients may have problems with bilirubin metabolism, and the bilirubin index in the blood rises too high, and the level in the urine is too high, which leads to yellow urine even after drinking a lot of water. Secondly, it is also considered that it may be related to chronic nephritis, because this kind of disease, may change the function of the glomerular tubules, resulting in the situation of drinking a lot of water but still urine yellow. In summary, these are the disease factors that may cause patients to drink a lot of water, but still urinate yellow. In addition to this, it may also be caused by the food or medication that the patient eats, such as yellow mushrooms, carrots, etc., or taking drugs such as vitamin B2, rifampin, phenolphthalein, also the patient will have the symptoms of drinking a lot of water but still urinating yellow.