Paraskevidekatriaphobia is the fear of Friday the 13th. It is derived from the Greek words "Paraskevi" meaning Friday, "dekatria" meaning thirteen, and "phobia" meaning fear. People who suffer from this phobia may experience anxiety or stress on Fridays that fall on the 13th day of a month.

If it’s Europe, America or Asia, superstitions are present in our so-called cultured, civilized, and educated society. The most common superstition is that Friday the 13th of the month is an unlucky and wretched day, and since, according to the story behind it, everything will go wrong and be unlucky on that specific Friday with the date of thirteen.