Possible reasons for the appearance of thick tea-colored urine: 1, due to urine concentration, such as less water or excessive water loss, such as the emergence of body temperature, excessive water evaporation or nausea, vomiting, diarrhea, etc. resulting in excessive water loss and insufficient rehydration, can appear urine color deepening, like a thick tea color. Without urinary tract irritation symptoms, urine can return to normal color after proper hydration or rehydration.2. If hepatocellular jaundice occurs, causing elevated levels of bilirubin and urobilinogen in the urine, yellowing or deepening of the urine color to a strong tea color can occur, accompanied by hepatocellular jaundice or biliary tract disease. Ultrasound examination of the liver and gallbladder is required, as well as further determination of serum and liver function tests and bilirubin level tests.3. In the early stage of hepatitis, blood bilirubin is not yet significantly elevated and symptomatic jaundice does not appear, and yellowing and deepening of the color of the urine can occur, suggesting possible hepatitis and the need for liver function tests.