Lumbar pain after lithotripsy is mostly normal. This is because in the process of smaller stones being expelled from the body through the ureter, it will reflexively stimulate the ureter, causing spasms in the ureter, resulting in pain in the lower back, and even nausea and vomiting in some patients. With the discharge of the stone, this symptom can be relieved. When back pain occurs, it is recommended to drink more water and urinate regularly as appropriate to help remove the stones. If the pain is more intense, pain-relieving medications can also be used. If the pain lasts for a long time and the pain is very obvious, there may be a situation where multiple stones are blocking the ureter, leading to the occurrence of a stone street, which requires surgical treatment. In addition, after lithotripsy, it is also important to pay attention to the presence of significant hematuria and fever. If there is obvious hematuria, and the duration is long, you need to go to the hospital in time, there may be kidney damage.