Ureterolithiasis back pain may be caused by local damage, the presence of residual stones, infection and other factors. 1. Local damage: when the lithotripsy treatment, resulting in local damage to the ureter, after the ureteral stone, the damaged parts have not recovered, there are still symptoms of back pain, only mild pain, may be returned to normal. 2. Residual stones: after lithotripsy treatment, there are still large diameter stones in the ureter, which can not be discharged by themselves, and will still cause irritation to the ureter, and there will always be the symptom of lower back pain, which may be accompanied by hematuria and difficulty in urination. 3. Infection: In lithotripsy he did not do a good job of care, may lead to ureteral local infection, infection aggravation will cause back pain, may also be accompanied by hematuria, urinary frequency and other symptoms. After the ureteral stone back pain, and the pain is more serious, it is recommended to consult a doctor for examination and treatment.