The urine is yellow regardless of how much water is drunk, it is recommended to go to the hospital for a urine test to clarify.1. Jaundice, if there is liver disease or biliary tract, gallbladder and other diseases can cause the bilirubin level in the body to rise. Excess bilirubin filtered out through the urine can be manifested as the phenomenon of yellow urine, common in the skin mucous membrane or eye sclera yellow staining, patients have a history of liver disease or biliary tract disease, need to go to the hospital for further liver function and routine urine examination. If the liver function indicates elevated bilirubin levels and the bilirubin levels in the urine are also elevated, it suggests the presence of related hepatobiliary system diseases, and specialist treatment in the hepatobiliary department is recommended.2. Dietary factors, such as long-term consumption of carrots or the use of special drugs, such as riboflavin, vitamin B complex or the use of health care drugs rich in vitamin B, can lead to yellow urine. It is recommended to stop the relevant diet and special drugs, and then observe whether the urine is yellow, at this time the routine urine examination is completely normal.