My retired father recently got his hernia redone and I'm not entirely sure if hernias are genetic are not. So me being his son well i'm wondering...My g/f loves to give handjobs and watch me masturbate as well, my question is by masturbating or doing hj are we doing any damage to the muscle groups that hold your hernia together? I know for a fact guys are more susceptable to hernias because hey we have dicks lol