Kidney stones falling into the ureter are likely to cause low back and abdominal pain, but not necessarily every day, the pain may be intermittent episodes or persistent, and there is a wide range of individualization. Kidneys and ureters are the most common sites for stones, and there is a difference in clinical presentation between the two. Patients with kidney stones usually have less severe pain, which is mainly dull and distending, and may also experience increased pain in the lower back during strenuous activities, as well as tenderness in the kidney area. Kidney stones fall into the ureter, if the stone is a small stone, can pass through the ureter without clinical symptoms, but if the stone is stuck in the ureter, the patient will appear in the lumbar or abdominal colic pain, some patients with very severe pain, may also be accompanied by nausea, vomiting, etc., but there is no obvious regularity of the onset of pain. If you have urinary stones, it is recommended that you consult a regular hospital in a timely manner for active diagnosis and treatment.