I agree with Emily - I think this is definitely worth some further medical testing to find out what’s going on. It’s possible this would heal on its own, but I sure wdn’t wanna take that chance myself. I’d hate to wait, then after no improvement, seek medical treatment & be told ‘Sorry, it’s too late, if you’d seen us sooner, we might have been able to help’ - YIKES !! I seriously doubt it’s that critical, but as I said, I sure wdn’t wanna take that chance if it were me. Get it checked out!
Good luck & let us know what they find...
I think you should go back to the doc for further investigation. Ask for an MRI or an ultrasound, and another urine test. Definitely don't let this go.
https://www.urologyhealth.org/urologic-conditions/testicular-trauma
I hope you get some answers. Let us know how it goes!