Anyone knows why a dog can be afraid to go up the stairs? He's a 12 year old Newfoundland and he's not had any bad accidents linked to the stairs in the past but nothing can make him go up there. Even treats won't work! Emotion: sad
Chances are that he has had an accident on the stairs to cause his fear. It could have happened while you were sleeping, or maybe when you were at work, but something has occurred to make him fearful.

My dog is the same. He's terrified of stairs and shiny floors, and nothing I have done so far has been successful in relieving his fears. He has himself thoroughly convinced that he's somehow going to get hurt.