What is the common modern phrase for the harmful consequences released by Pandora?

The common modern phrase for harmful consequences released by Pandora is “Pandora’s box.” In everyday English, opening Pandora’s box means starting a process that creates many unexpected problems or complications.

The expression comes from the Greek myth in which Pandora opens a sealed container and releases evils into the world. Although the phrase is familiar, the ancient container was a pithos, or large storage jar, not a small box. The wording became established through later Latin translation and European literary tradition.

The idiom can describe political decisions, technological developments, legal disputes, or personal choices. It usually suggests that a seemingly simple action has consequences that are difficult to reverse or contain.

“Pandora’s box” is distinct from other myth-based expressions. A “Trojan horse” refers to concealed danger, “Achilles’ heel” means a vulnerable weakness, and the “Midas touch” describes unusual success in making money or producing value.