What does “Pandora’s box” commonly symbolize in modern English?

“Pandora’s box” commonly symbolizes a source of unexpected troubles. The expression describes an action that releases many unforeseen problems and makes it difficult or impossible to restore the previous situation.

The phrase comes from the Greek myth in which Pandora opens a container and releases evils or hardships into the human world. Hesiod’s original account describes a jar, called a pithos, not a box. The “box” wording became widespread through later translation and retelling, especially after Renaissance writers adapted the story for European audiences.

In modern English, the expression is usually metaphorical rather than religious or literal. Someone may call a complicated legal dispute, technological change, or political decision a Pandora’s box when it creates consequences beyond the original intention. The phrase does not normally mean that every consequence is evil; it emphasizes the sudden release of difficult, far-reaching problems.