What is the first yellow urine in the morning?

The first urine in the morning is yellow, how is it going on? The first urine color in the morning is yellow, which is mostly caused by urine concentration, but it does not rule out the existence of jaundice disease or metabolic disease. It is recommended to go to the hospital for further examination to clarify the cause: First, if the urine concentration occurs at night, causing yellow urine color, urine color can be restored to normal color after drinking more water or urine color can be restored to normal color at noon and afternoon, this situation does not need to go to the hospital for treatment, only need appropriate water supplement. II. If the urine color is yellow all day, it is suggested to further conduct routine urine examination and bilirubin index examination to rule out jaundice disease, such as bilirubin and urobilin level in urine, and further check liver function and biliary system to rule out hepatocellular jaundice or obstructive jaundice and other diseases, resulting in excessive bilirubin, resulting in urine staining.