In the article entitled “In vivo photobleaching kinetics and epithelial biodistribution of hexylaminolevulinate-induced protoporphyrin IX in rat bladder cancer” published in Current Urology 2021;15(1):2–10 (doi: 10.1097/CU9.0000000000000004), the following Statement of Ethics was omitted: “This study was approved by the Institutional Review Board of Lebanese International University (LIUIRB-180907-SEK1) on 10 September, 2018.” We apologize for this error and any inconvenience this may have caused.