Halloween Infographic Educational

Witches, Blood, and the Moon: The Menstrual Myths That Haunt History

Trace the cross-cultural threads that linked witchcraft, menstrual cycles, and lunar lore—and see what holds up under the light of evidence.

Across Cultures

Many communities noticed that an average menstrual cycle (~28–29.5 days) resembles the lunar month (~29.5 days). This coincidence fueled beliefs that the moon governs menstruation—and fed fears that “moon-touched” people had strange powers.

Moon ≈ 29.5 days Cycle ≈ 28 days Correlation ≠ causation
Early Modern Europe

Witchcraft Accusations & “Unruly Bodies”

In periods of social stress, people accused of witchcraft were often women outside local norms. Bodily processes—pregnancy, lactation, and menstruation—were folded into anxieties about hidden influence and pollution.

Records rarely prove a direct causal link between menstruation and specific trials, but rhetoric about “uncleanliness” and “female contagion” appears in sermons, pamphlets, and medical tracts of the time.

Household Lore

Protective Practices

  • Hanging herbs or iron near doorways to ward off “moon magic.”
  • Avoiding fermenting, pickling, or baking during menses to prevent “spoiling.”
  • Seclusion huts or separate sleeping areas framed as protection—sometimes also as exclusion.

Motivations varied: hygiene, rest, spiritual purity, or community rules.

Myth vs. Reality

What the Evidence Says

Myth The full moon synchronizes everyone’s cycle.

Reality Cycle lengths vary widely, and population-level synchronization with lunar phases isn’t consistently supported. Similar lengths don’t prove control.

Myth Menstrual blood is inherently “corrupting” or magically potent.

Reality Menstrual fluid is a mix of blood, mucus, and endometrial tissue—biologically ordinary. Harm and power claims often reflect cultural taboos, not physiology.

Myth Menstruation reveals witches.

Reality Witchcraft accusations historically tracked social rifts, gendered expectations, and crises—not biomarkers.

Quick Timeline

Snapshots Through Time

Antiquity: Philosophers and healers debated the moon–menstruation connection; some advised timing remedies by phases.
Medieval Cosmologies: Astrology and humoral theory framed bodies as influenced by celestial “pulls,” reinforcing lunar lore.
Witch-Hunt Era: Pamphlets and sermons cast women’s bodies as spiritually risky; menstruation folded into impurity ideas.
19th–20th c. Medicine: Shifts toward laboratory science challenge supernatural claims, yet stigmas linger in etiquette and workplace rules.
Today: Public-health and education focus on dignity, access, and evidence over taboo—while myths still circulate online.
Semiotics

Why the Symbols?

The Drop: Menstrual fluid—ordinary biology.

The Moon: A calendar in the sky; a metaphor often mistaken for mechanism.

The Star: Fate and fortune—systems once used to explain bodily rhythms.

Takeaways

Reading the Myths Critically

Notice pattern-matching. Similar durations invite cosmic stories; evidence decides mechanisms.

Separate care from stigma. Seclusion or rest might be comforting—coercion isn’t.

Context matters. Practices labeled “witchy” can reflect hygiene, privacy, or social order, not sorcery.

Cycle vs. Moon

Close, But Not the Same

Average menstrual cycle ≈ 28 days; synodic lunar month ≈ 29.5 days. The gap compounds: after a few cycles, phase and period drift apart.
Four 28-day cycles (112 days) ~3.8 lunar months (112.1 days)

Result: any apparent “sync” tends to drift over time—undermining claims of strict lunar control.

Use with Care

Context & Respect

This infographic is a seasonal, educational overview. Practices and beliefs are diverse; avoid stereotyping any culture. When discussing menstruation—past or present—center dignity, privacy, and access to care.

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