The presence of red blood cells in the urine routine indicates the occurrence of stones, inflammation or neoplastic lesions in the urinary system. However, it is not possible to make a definitive diagnosis based on urine red blood cells alone, and the condition needs to be fully judged based on other accompanying conditions. Generally speaking, urine does not contain red blood cells or only a few red blood cells. If red blood cells are mixed in the urine, it can be divided into microscopic hematuria and meat goat hematuria depending on whether it can be recognized by the naked eye. It is only detectable under the microscope and is called microscopic hematuria, and if the urine has a slightly red appearance with a washboard-like red color, it is called meatus hematuria. The condition of hematuria is mostly suggestive of urinary system lesions, such as urinary stone irritation, urinary inflammation or infection, and if there are neoplastic or tumorigenic lesions, the appearance of hematuria condition is also seen, in addition, if the recent exercise is relatively large, some hemolytic conditions may occur, which may also lead to the appearance of hematuria condition. However, it is possible that the red blood cell test of urine routine may have abnormal results, for example, women’s menstrual period, which may easily lead to the mixing of blood in the urine, resulting in abnormal results, so it is recommended that the hematuria situation found be rechecked several times to clarify the final situation. During the examination, in addition to checking the urine routine, it is also necessary to hold urine for urinary ultrasound, CT examination and, if necessary, urography may be required to analyze the patient’s condition comprehensively. In short, it is recommended to check several times to clarify that it is hematuria, and then strive to find the cause and comprehensive analysis and treatment.