The main function of dual renal ureteral bladder ultrasound is to find out whether there is any disease or anatomical abnormality in the urinary system, and if there is any abnormality, it is necessary to seek medical treatment in time. Color ultrasound examination of both kidneys and ureteral bladder is a kind of imaging examination, which can find out whether there are abnormal echoes or occupying lesions, and then bring a lot of clinical reference information for urologists, so as to help determine the patient’s condition, such as the existence of lesions, the location of the lesions and the severity of the lesions, etc., and ultimately, through the color ultrasound examination to achieve the purpose of early detection. In addition, color ultrasound is also applicable to other systems, such as vascular diseases and gastrointestinal diseases with unique diagnostic functions. Patients who have any abnormalities during the examination should be treated promptly.