It seems like some men are complaining about having a shorter penis after prostate cancer treatments. According to this Health Day News article, " A small number of men with prostate cancer complain that their penis appears to be shorter following treatment, doctors report.
According to researchers from the Dana-Farber Cancer Institute and Brigham and Women's Cancer Center, Boston, these patients said that this unexpected side effect interfered with their intimate relationships and made them regret the type of treatment they had chosen." more 
Have you or your partner experienced this? What did your doctor have to say about it?