Self-inflicted foreign bodies in the urinary bladder are very rarely reported. Insertion of a wide variety of objects into bladder due to autoerotic stimulation, psychiatric disturbances, and senility etc. have been reported in the medical literature. This case report discusses an exceptional incident where a young male patient self-inserted a ball-point pen into his urinary bladder via the urethra. Notably, the pen negotiated the curvatures of the urethra without causing significant lower urinary tract injury. The report underscores the challenges and successful endoscopic removal of the pen, marking the first documented instance of such an extraction in a male patient.

Keywords : pen, foreign body, bladder, endoscopic extraction