Last Night I Felt A Foreign Substance Being Ejected In

Last night I felt a foreign substance being ejected in my urine. There was no pain or warning that I was going to eject that foreign substance. After completing the ejection, I first thought the object was something like an insect the size of a fly. I went and got my reading glasses to look closer, and I still could not tell what the object was. I guess it could best be described as something soft that looked like it could be a fly but I am confident it was not that---I just don't know what it was. Nothing like that has ever been incurred by me. Since I have had no bad repurcussions, do I need to be concerned over that event? I guess my concern is that there is perhaps some sort of blockage or other condition that would allow something unusual like that to occur, so that is why I am asking the question.