Through the ultrasound examination of the urinary system, diseases related to the urinary system can be detected, which mainly include kidney diseases, ureter diseases and bladder diseases according to the top to bottom. 1. Kidney diseases: abnormal kidney conditions can be detected through the examination, mainly including malformation of kidney development, nephritis, kidney stones, kidney cysts, kidney tumors and so on. 2. Ureteral diseases: the most common are acute ureteral disease, ureteral stone, ureteral stenosis and ureteral cancer. 3. Bladder diseases: bladder residual urine volume, cystitis, bladder stones and bladder cancer can be detected by urinary ultrasound. Through the ultrasound found abnormal urinary system conditions, if necessary, can do CT, MRI for investigation, pay attention to drink more water, pay attention to light diet, do not eat spicy and stimulating food, pay attention to regulate the physical condition . Through the examination found that there are lesions, further abnormal urination and hematuria symptoms, you need to consult a doctor in time to observe, under the guidance of the clinician for standardized treatment.