We describe an unusual case of a male patient presenting with penile and testicular swelling following an unprotected and traumatic sexual encounter. It was suspected that an isolated penile injury occurred during intercourse; however, ultrasound imaging identified an intact tunical layer and right-sided epididymo-orchitis. Following screening for sexually transmitted infections (STIs), he was discharged with antibiotics and advice to attend the Sexual Health Centre for contact tracing. He represented with a periurethral abscess and an antimicrobial-resistant (AMR) strain of Neisseria gonorrhoea was identified. Appropriate antibiotic treatment was initiated. Examination-under-anaesthesia, following abscess drainage, revealed a contained collection with no urethral fistula; however, a flat urethral lesion was seen during urethroscopy. Repeat urethroscopy and biopsy of the lesion indicated polypoid urethritis. Periurethral abscess secondary to gonococcal urethritis is a rare complication, but one that we should be suspicious of, especially with the growing incidence of AMR-STIs.