The majority of high urine yellow concentration may be the result of poor dietary habits, usually eating salty food, eating too much protein-rich and fatty food, or usually drinking little water, which leads to concentrated urine. After the urine is concentrated, there is a large amount of organic and inorganic salts in the urine, so that there will be yellow urine and high concentration of urine. It is recommended to always have a routine urine test to observe if there are any abnormalities in the urine. If there is just an increase in urine specific gravity, yellow urine, and high urine concentration, it is caused by these reasons above. If the urine is positive for urobilirubin and urobilinogen, the liver and biliary system is diseased. Liver and biliary ultrasound, hepatitis markers, and liver function should be done to confirm the diagnosis.