Possible causes of urine teal color: 1, obsolete hematuria after kidney or bladder trauma: At this time, it is recommended to perform routine urine examination, and if red blood cells are visible, obsolete hematuria is considered. When trauma occurs, the urine can appear bright red in the early stage, and as the disease progresses, the urine gradually appears dark red; 2, acute hemolysis: after acute poisoning or blood transfusion can appear urine thick tea-colored or soy sauce-colored, consider hemolysis caused by a clear history of blood transfusion or acute poisoning; 3, urine concentration: that is, less water consumption, more sweating and insufficient water supplementation, patients can appear urine concentration, which can appear dark yellow or tea-colored. This situation is not seen in the urine routine check red blood cells, if the tea color turns to clear color after drinking more water, it is considered to be caused by concentration; 4, internal diseases: such as erectile proteinuria or sericea and other conditions, belonging to the red blood cell destruction more and a long time to appear in the urine tea color.