Drink a lot of water, urine is still yellow. Why?

Normal urine is light yellow, urine color and how much water is related, if you drink more water, urine volume, urine color may be clear. If you drink less water, urine less, urine color will be yellow. This time it is best to go to the hospital to do a urine test, if this time urine test is normal, urine inside various indicators are normal, indicating that this situation is not a problem, do not need special treatment. However, if the urine protein is very high, or the urine sugar is very high, this situation needs to be further ruled out by internal medicine for nephritis or diabetes. In addition, if the urine test finds that urine bilirubin and urobilinogen are elevated, this situation needs to be ruled out for liver disease, pancreatic disease, liver sac disease or gastrointestinal disease. These diseases will lead to elevated urobilinogen in urine, elevated bilirubin, and yellow urine.