 [ Symptoms ] what is salmonella and how can i prevent getting it [ Disease ] hi so it fell off so now its a none bump it no longer exists so why worry now its gone i do not know of anything from masturbating that would cause a bump unless your masturbating with a tight grip if so please change it to a feather light grip by doing this is resembles the way a vagina would fill like and please use some kind of oil baby oil will do hope this helps good luck