Background: Repeat transurethral resection of bladder tumour (reTURB) is a conventional treatment for non-muscle-invasive bladder cancer (NMIBC) to enhance prognosis. However. the necessity of reTURB in NMIBC remains controversial owing to upstaging of treatments and new evidence. Objectives: We performed an umbrella review to determine the need for reTURB in patients with NMIBC. https://www.popularfilm.blog/