Hello Dr. Rynne. Thank You For Your Time. My Husband

Hello Dr. Rynne. Thank you for your time.
My husband is recovering from shoulder surgery performed yesterday. Oddly, he is experiencing testicular pain. Two years ago, after a spinal fusion, he experienced the same pain. We are not positive if a catheter was in place during either procedure. Is the pain in the scrotum possibly caused by a reaction to anesthesia? Is there a pain relief method we may use?