Background <p>Bladder leiomyomas are benign neoplasms of the bladder. Giant bladder leiomyomas are rare and conventionally treated by partial cystectomy.</p> Case presentation <p>We present the case of a 51-year-old woman diagnosed with a bladder leiomyoma measuring 8.0&#xa0;cm in diameter. The tumor was successfully removed through transurethral resection of bladder tumors (TURBT), which was completely recorded on video.</p> Conclusion <p>This case underscores the successful removal of a giant bladder leiomyoma by TURBT, resulting in a good prognosis. It highlights the potential for minimally invasive management strategies for benign neoplasms of the bladder.</p> Take-home information <p>This case demonstrates that endoscopic resection of a giant bladder tumor is safe and feasible, offering a minimally invasive alternative for select patients.</p> Clinical trial number <p>Not applicable.</p>