Zhao S, et al. - Researchers performed a meta-analysis to determine if radiotherapy (RT) for prostate cancer (PCa) was a risk factor for secondary bladder cancer (BLCa). They summarized the association between RT and risk of BLCa using hazard ratio with a 95%CI. From 15 studies, they included 619,479 participants (age: 57–79 years), 206,852 of whom received RT for PCa and were noted to be at higher risks of developing secondary BLCa compared to those unexposed to RT. However, the absolute effect was noted to be low.