My experience has been very similar to that posted by hector13. I had robotic surgery to remove a malignant prostate in 2007 (age 62) but my PSA started to rise again in 2018. I had 39 radiation sessions in 2018 focused on the area where prostate was removed which reduced PSA from 0.13 to 0.01 to 0.03 range where it remained the last time it was checked in early 2025. In May 2024, six years after radiation I started periodically seeing blood and small clots in urine. Sometimes it would be months between episodes. On one episode (while on Eliquis) a large blood clot plugged my urethra requiring an emergency room visit and a foley catheter to clear the blockage. My urologist did a cystoscope to check the bladder and found no issues. He said that it was probably from some damage to my urethra and offered no resolution. Now about 18 months after it started, I still have periodic relatively small amounts of blood in the urine and sometimes will pass clots. The latest was a relatively large clot that passed today after months of all clear. I'm wondering whether excessive straining or exercise might be a trigger.