In the Greek myth of Pandora, evils spread through the world when the jar was opened.
Hesiod says that the container held destructive conditions that had not previously afflicted human life. When Pandora opened it, these evils flew out and became part of the human experience. The myth therefore offers a poetic explanation for why suffering, sickness, labor, and other hardships exist.
Different translations use different nouns, including evils, miseries, diseases, or ills. The exact list is not presented as a modern scientific catalog. Rather, Hesiod describes a broad category of harmful conditions released from confinement.
The story is often summarized as an origin myth for evil, but it also belongs to a larger Greek discussion of work, marriage, mortality, and the limits placed on humans by Zeus. Its meaning is consequently wider than the single image of a container being opened.