General

Ureter stones are stones that started their formation in the kidney before moving down to the ureter (a tube that transports urine from the kidneys to the bladder). Learn more about types of, treatment, and risk factors for ureter stones. Continue Reading

Upper urinary tract obstruction is a common condition in which part of the ureter -- the tube that connects kidney to bladder -- becomes blocked and prevents the flow of urine. Continue Reading

Hydronephrosis occurs when urine is unable to flow to the bladder and collects in the kidneys, causing them to swell. The condition can be the result of a number of underlying causes and left untreated can have serious long-term effects, including kidney failure. Continue Reading

Bladder outlet obstruction (BOO) is a blockage at the bottom of the bladder that stops or slows the urine from passing out of it. If left untreated, this can damage the bladder or kidneys. Continue Reading