What causes yellow urine for a long time?

Long-term yellow urine is caused by what? The human body shows long-term yellow urine phenomenon, should check urine routine. If there is no clear composition change in urine, it may be due to the human body usually drink less water, or work in a high temperature environment, resulting in the body's urine concentration and show this phenomenon. If urine routine examination found that there is an increase in bilirubin, or there is an increase in protein, this situation should be clear primary disease. Elevated bilirubin, mainly seen in liver disease, chronic hemolytic disease or biliary obstructive disease, and special rheumatic immune system diseases, can cause abnormal metabolism of bilirubin and increase in urine. Treatment should be based on the specific primary disease. If there is an increase in protein levels, this situation may be caused by primary kidney disease and secondary kidney damage, such as diabetic nephropathy, hypertensive nephropathy, rheumatic immune nephritis. In this case, it is recommended that patients be treated in time to protect the kidney and effectively control the primary disease to alleviate this phenomenon.