I was wondering if anyone has experienced changes in erections or ED with the use of an extender? I have read stories of guys penis's being damaged resulting in weak erections. I have also talked to a couple of guys who had the opposite experience. Trying to gather enough information before venturing into using an extender. I was wondering if anyone has experienced changes in erections or ED with the use of an extender? I have read stories of guys penis's being damaged resulting in weak erections. I have also talked to a couple of guys who had the opposite experience. Trying to gather enough information before venturing into using an extender.