Prostate cancer is very common in the United States. The prostate is a small gland sandwiched between the bladder and rectum. Due to the prostate’s close proximity to the bladder, urethra, neurovascular bundles and rectum, the most common side effects of any surgical or radiological prostate cancer treatment include urinary, bowel and sexual (erectile dysfunction) side effects. https://www.chicagocancer.org/treatments-technologies/high-dose-rate-brachytherapy