The incidence of urinary stones is also increasing as people’s living standards continue to improve. Urinary stones have become a common disease, but many people do not have a correct understanding of stones, considering them as a so-called minor disease and delaying treatment, resulting in serious consequences. What exactly are the hazards caused by stones? Here we come to know: 1. Pain in the kidney area and blood in the urine. Urological stones can usually move in different parts of the urinary tract, easy to friction damage the mucosa of the urinary tract caused by bleeding, such as stone blockage of the urinary tract can appear renal colic. Long-term stimulation of the mucosa of the urinary tract, resulting in epithelial detachment, tissue ulceration, polyp formation, resulting in the formation of adhesions between the stone and the ureteral wall, and may cause cancer. 2. Urinary tract infection. When urinary stones block the urinary tract, it is very easy to complicate bacterial infection and even form pus in the kidney, and serious urinary tract infection may also cause sepsis, which directly threatens people’s lives. In addition, the infection can promote the formation of stones and aggravate the urinary obstruction, the three cause and effect each other to cause a vicious circle, so that the volume of the primary stone increases, the kidney fluid aggravates, and the urinary tract infection remains untreated for a long time. 3, hydronephrosis, renal insufficiency. Urological stones, especially ureteral stones, are most likely to cause urinary tract obstruction, and the ureter and renal pelvis above the obstruction site will be dilated and waterlogged, causing the kidney parenchyma to be squeezed and affecting kidney function. If the hydronephrosis is not relieved for a long time, the whole kidney function may be lost in serious cases. If the bilateral urinary tract is severely obstructed at the same time, it may lead to acute renal failure (anuria). In summary, urinary stones can lead to serious complications, such as ureteral stenosis, severe hydronephrosis, sepsis, and acute renal failure if the diagnosis and treatment are delayed. In our daily cases, it is common to see patients with renal insufficiency. Therefore, it is important to strengthen the awareness of urinary stones, and once they are found, they should be given enough attention and treated actively; at the same time, stone disease is prone to recurrence, and should be regularly reviewed for early detection and timely treatment to avoid causing serious damage to the body again.