<b><i>Introduction:</i></b> The aim of this study is to evaluate the quality of photodynamic diagnosis (PDD) and transurethral resection of bladder tumors (TURBT) among different urologists. <b><i>Patients and Methods:</i></b> The selected data consists of 194 patients, 268 5-aminolevulinic acid (5-ALA)-induced PDD procedures and 934 biopsies. Tumors were resected and biopsies were taken from suspicious areas under guidance of white light endoscopy and 5-ALA-induced fluorescence cystoscopy. The quality of PDD was determined by evaluating the mean number of tumors resected by 5 urologists and, thereafter, assessing the time to recurrence between groups. <b><i>Results:</i></b> Urologist 1 took 37% more biopsies (p < 0.001) and diagnosed 42% more tumors (p = 0.005) and 46% more false positives (p < 0.001) from bladders compared to urologists 2, 3, 4 and 5 together. The mean time to bladder cancer recurrence for all recurrences within 0–18 months was 11.0 months for operator 1 and 8.3 months for the other urologists (p = 0.01). <b><i>Conclusions:</i></b> The resecting urologist appears to be an important factor for the quality of standard and PDD-assisted TURBT. Learning curve programs may be required with experienced surgeons accompanying those with less experience.