What should you do if say the word Macbeth on stage?

It is generally considered bad luck to say the word "Macbeth" in a theatre, especially backstage. According to theatrical superstition, saying the name of the play aloud will bring bad luck to the production, such as causing accidents, delays, or poor performances.

To avoid any potential misfortunes, actors and theatre professionals often refer to the play as "The Scottish Play" instead of using its actual name. This tradition dates back to the early 17th century when the play was first performed, and it is still widely practiced today as a way to pay respect to the superstition and ensure a smooth and successful production.