11 mm stone, is almost 1/2" No way to pass that one. It had to be blasted with a laser and then they inserted a basket to pull out the pieces and then they put in a stent for a few weeks to pass through any residual pieces. I would pee blood after any strenuous exercise but my ultrasound would look normal as urine found its way to circulate around the stone. The CT scan had no problem showing a rock of that size.
