Urinary calculi is one of the oldest diseases of mankind. Medical history records that humans have been struggling with this disease for more than 3,000 years. According to the latest research, the incidence of urinary stones has been increasing over the past two decades as the global climate is gradually warming. At the same time, China’s rapid economic development, people’s material living standards have increased significantly, resulting in significant changes in dietary structure and living habits, thus, the incidence of urinary stones as a “rich disease” has increased more than that of developed countries, jumping to become one of the three most prevalent areas in the world, East China, especially The incidence of urinary stones in East China, especially in Jiangsu, is already close to that of South China, which is the most prevalent region in China. What is more, even with the advanced technology of extracorporeal shock wave lithotripsy and minimally invasive surgery, the recurrence rate of stones can be as high as 50% or even 100% if the stone components are not effectively prevented. For those who have received standard treatment, the recurrence rate is 10-15%. Only by clarifying the true nature of the stone, identifying the composition of the stone, determining the risk factors for stone formation, and treating the cause, can we effectively control the recurrence of stones. The treatment of urinary stones is like “going to war”, the patient and family members must pay special attention to the tissue structure, function and fluid retention of the kidney, as well as the size, shape and location of the stones. Ultrasound examination of the kidney and bladder Ultrasound examination of the kidneys and bladder is accurate and reliable, but the ureter is often blurred due to the interference of intestinal gas in the abdomen. Intravenous pyelogram has an irreplaceable value in visualizing the entire ureter and observing renal function. The drawback of the first two is that their images are two-dimensional planes and the stone is seen only as a slice, whereas CT 3D imaging can distinguish the stone in three dimensions. It is unfortunate that CT from the kidney to the bladder is a cross-section every 5 mm and cannot spell out the overall image of the ureter.