i don't know. i can't see them but it certainly is possible. kidney stones can cause uti symptoms and of course stones can be as tiny as grains of sand or salt. you can retrieve some of these grains by pouring your urine through a coffee strainer and then they can be analyzed. the big concern would be kidney stones so you may need to see a urologist and perhaps have a few diagnostic imaging tests to see if there are other stones. perhaps bigger and more problematic ones. still in the kidney.
small sand like grains in urine. i started taking azo for uti symptoms. now in addition to the usual orange urine i see orange sand like grains in the toilet. is this kidney stones or something else?