Hi Rafael,
I’m scheduled for February 11. I’ve been writing about my story at this thread here. It is frustrating not to know the root cause of your stricture. I don’t know either, only that I’ve had it a long time (in retrospect — I just didn’t understand my symptoms were symptoms for a long time). My best guess is that I got kicked in the groin playing soccer when I was young, and that caused the damage and scarring.
I do plan to keep updating my thread, since I’ve found this resource so helpful. Heal well!