A transurethral resection of the bladder refers to the removal (resection) of the bladder directly via the urethra. The endoscopic procedure through the urethra is performed on the one hand as a diagnostic method to harvest tissue from the bladder, and on the other as a therapeutic method to treat superficial bladder tumours. The Swiss Atlas of Healthcare contains analyses on the frequency of transurethral resections of bladder tumours overall and separate analyses on inpatient and outpatient settings.