Researchers have found that an experimental treatment -- the precise application of heat via laser to a tumour -- is not only feasible and safe in men with intermediate risk of prostate cancer but can also help avoid certain side effects associated with conventional treatment. These are the 7 ways prostate cancer is a silent killer. Historically prostate cancer has been treated with surgery and radiation which can result in serious side effects such as erectile dysfunction and urinary incontinence. The new study published in the Journal of Urology found no serious adverse effects or changes in urinary or sexual