For folks who have undergone urethroplasty with a perineal approach, or are about to, do not be surprised if you still have some niggling pain in the scrotum for many many months. It’s been 8 months since my surgery and I still have it. From what I’ve seen on forums and what one of my surgeons said, there could be pain there for up to a year.
However, my main surgeon, and most other doctors (primarily urologists) all say there should be no reason for it. There is no swelling, and no trouble that can be seen in an ultrasound or that can be detected from a (very) thorough digital exam. So the cause is uncertain. It appears that a lot of nerves get disturbed, mashed, cut, burned, etc. during a urethroplasty, and even after the other tissue is all healed up, nerves can act very strangely and can take much longer to get back to normal.
I eventually found a forum where several guys report having had pain as long as 11 months or so. Even though that sounded like an unreasonably long time, it made me feel better to know that it was both somewhat normal, and would eventually go away. It shifted my expectations, which is a good thing. Here is a link to that forum:
The good news is that this pain is not really very bad – just a bit annoying – and is certainly not debilitating after the first few months. And according to the guys who have been through this years ago, it does go away. So it is not uncommon, and there likely isn’t anything really wrong other than nerves acting up. But you should check with your doctor FOR SURE if you do have this pain several months after surgery, just in case it isn’t the same harmless-but-still-there pain I mention.