What is Bathmophobia?
Bathmophobia is the fear of stairs or steep slopes. The origin of the word bathmo is Greek (meaning a step) and phobia is Greek (meaning fear). Bathmophobia is considered to be a specific phobia. Bathmophobia is also related to Climacophobia (fear of stairs, fear of climbing stairs and fear of falling down stairs).
The video (link below) is about one person and her experience and trigger. There are a variety of other triggers, experiences and treatments for bathmophobia.
http://youtu.be/QK0gSaUtods