Smallpox demon: The Smallpox Demon is a terrifying supernatural entity from medieval Japan, believed to be responsible for causing smallpox outbreaks.

Smallpox demon - Represents the mysterious and feared nature of epidemic diseases in medieval Japan, leading people to both appease and confront the demon.

Smallpox demon

Smallpox demon - Represents the mysterious and feared nature of epidemic diseases in medieval Japan, leading people to both appease and confront the demon.

The Smallpox Demon is a terrifying supernatural entity from medieval Japan, believed to be responsible for causing smallpox outbreaks. People both appeased and attacked it in efforts to mitigate the disease. It embodies the fear and mystery surrounding the origins of epidemics in historical Japanese society.

Origins & First Encounters

Source Texts & Tale Variants

Form & Powers

Regional Faces

Cultural Parallels

Legacy & Modern Evolution

Interesting Fact

An interesting aspect of the Smallpox Demon is how traditional rituals to appease it possibly served as early forms of community-based public health responses, reflecting a blend of superstition and pragmatic action.

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Quick Creature Info

Our Mythic Legendary Rating:

Mystical Awakening
Mystical Awakening rating

Also Sometimes Known As:

HōsōkamiSmallpox devil

Habitat:

SupernaturalDisease and EpidemicMedieval JapanBelieved to dwell in the interstitial space between the physical and spiritual worlds.Spiritual realmJapan

Supernatural Powers:

Inflicts smallpox through a curseSupernatural disease transmission

Abilities:

Capable of inducing widespread epidemicInstills fear

Behavior:

MalevolentKnown for causing widespread illness and invoked terror among medieval populations

Lore:

Bringer of smallpoxJapanese folkloreRepresents the mysterious and feared nature of epidemic diseases in medieval Japan, leading people to both appease and confront the demon

Related Creatures, Tales or Lore

  • S
    Shitala Devi
  • P
    Pestilence (Four Horsemen)
  • P
    Plague Demon of Medieval Europe

References

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Curated by the Mythological Creatures Team

Series editor: Mythological Creatures Directory

Primary desk: Asian & Pacific Myth Cycles Desk

(rev. November 2025)