Kidney stone, 2 weeks post-op partial nephrectomy

memeyoyo

I am 2 weeks post-op partial nephrectomy and had to go to er for bilateral flank pain. I apparently have a 4mm stone in my left kidney, which was the kidney that the partial nephrectomy was done on for top clear cell renal cell carcinoma. There was no stone present during surgery. It's it normal for this to happen?