Kidney stones should be treated by a urologist. For kidney stones, a urology department will perform an ultrasound of the urinary system to examine them. The symptoms of kidney stones mainly depend on the size, shape, and location of the stones, as well as the presence of any obstructions or complications such as infections. Smaller kidney stones often do not cause any symptoms in patients unless the stone falls into the ureter, which can cause acute renal colic, severe lumbar and abdominal pain, and sometimes nausea, vomiting, frequent urination, urgency, and hematuria. If kidney stones are accompanied by a urinary obstruction or infection, patients may experience persistent high fever. If the kidneys have multiple columnar stones, it can lead to impaired renal function and cause renal insufficiency. Therefore, kidney stones should be taken seriously. If the stones are relatively large, consider surgical treatment or lithotripsy.