Ureteral stone back pain may be caused by stone impaction or activity. The typical symptom of ureteral stone is “renal colic”, which is a pain in the lower back that starts suddenly and worsens gradually. This is due to the ureteral stone embedded in the ureter, can lead to ureter and renal pelvis pressure increases, making the kidney colic, manifested as low back pain; in addition, when the stone activity can also stimulate the ureteral mucosa, resulting in ureteral smooth muscle spasm. In addition to low back pain, the pain caused by the upper ureteral stone can also radiate to the lower abdomen on the same side, and the lower ureteral stone can radiate to the groin, scrotum or labia majora on the same side. In addition back pain may be accompanied by hematuria, fever, urinary frequency, urgency, urinary pain, nausea, vomiting and other symptoms. If you have ureteral stones, it is recommended to consult a doctor for standardized diagnosis and treatment.