Is blood in my urine common after ESWL for kidney stones?

It is normal to see blood in the urine for several weeks after extracorporeal shock wave lithotripsy (ESWL). However, large amounts of blood or blood clots in the urine may indicate that the kidney was injured by ESWL treatment.

Although ESWL is a relatively safe treatment, it is important to note that adverse events, although uncommon, do occur. You should contact your doctor if you experience increasing pain, or pain that is getting worse instead of getting better. This may indicate either that there is bleeding around the kidney as a result of ESWL or that the kidney stone fragments have all fallen into the ureter and are blocking the drainage of urine from the kidney.

In addition, the presence of a fever may indicate that there is a serious kidney infection.