In Hesiod’s Pandora myth, evils escaped from the sealed vessel into the human world.
Works and Days describes the container as holding destructive conditions that had previously been kept away from human beings. When Pandora removes the lid, these evils fly out and spread among people. Hesiod’s wording refers to troubles or evils rather than naming a modern catalog of separate diseases and disasters.
Later retellings often expand the contents into a list of human misfortunes, such as illness, war, greed, and sorrow. Those lists can be useful summaries, but they should not be mistaken for a complete inventory supplied by Hesiod. The ancient poem’s key point is that suffering becomes part of ordinary human existence after the vessel is opened.
The story’s moral framework also connects the release with Zeus’s conflict with Prometheus. Pandora is sent after Prometheus deceives Zeus and steals fire for humanity. The container episode thus explains the origin of hardship while making Pandora’s opening an irreversible turning point.