Kidney stones may be present for a long time and without symptoms, especially for larger stones. Small stones have a large range of motion, when small stones enter the ureteropelvic junction or ureter, causing severe peristalsis of the ureter, to promote the discharge of stones, and then appear colic and hematuria. Colic and hematuria are the main symptoms of kidney stones.
Colic: the pain caused by kidney stones can be pided into blunt pain and colic. 40%-50% patients had a history of pain with a gap attack. Pain is often located in the waist and abdomen, most of which are paroxysmal or persistent pain. Some of the pain may only be manifested as lumbar distention and discomfort, and activity or labor may cause pain exacerbation or exacerbation.
Hematuria: hematuria is another major symptom of kidney stones. Pain often accompanied by gross hematuria or microscopic hematuria, the majority are later, a large number of gross hematuria is not seen, hematuria after physical activity can be aggravated. Urinary stones can be expelled from the urine of patients with kidney stones, especially when pain and hematuria occur, and urine contains sand or small stones. Obstruction or tingling occurs when stones pass through the urethra. The common complications of renal calculi are obstruction and infection. Many cases are treated with urinary tract infection symptoms. Obstruction leads to hydronephrosis, with an upper abdominal or lumbar mass.
Other symptoms: when secondary to acute pyelonephritis or kidney abscess, may include fever, chills and other symptoms. When bilateral upper urinary tract calculi or renal calculi are completely obstructed, it can lead to no urine. Severe kidney stones can lead to secondary renal failure, toxic shock and death.