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Leprosy in Medieval Society

Jun 18, 2025

Overview

This lecture covers the history, symptoms, treatments, and societal impacts of leprosy in the Middle Ages, focusing on its medical understanding and social responses.

Understanding Leprosy

  • Leprosy (also called Hansen's disease) is a chronic infectious disease caused by Mycobacterium leprae.
  • Symptoms include lesions on the skin, nerve damage, and, in advanced cases, deformities.
  • Transmission is slow and primarily occurs through respiratory droplets between people with prolonged close contact.

Leprosy in Medieval Society

  • Leprosy was feared and often misunderstood in the Middle Ages.
  • Medieval people believed leprosy was highly contagious and a punishment for sin.
  • Leprosy sufferers were often segregated into "leprosaria" or leper houses outside towns.
  • Leprosaria provided basic care but also acted as a form of social exclusion.

Treatments and Beliefs

  • Treatments included herbal remedies, dietary restrictions, and spiritual interventions, but were largely ineffective.
  • The Church played a significant role, sometimes offering support or interpreting leprosy as a spiritual trial.
  • Leprosy was often confused with other skin conditions due to limited medical knowledge.

Social and Legal Responses

  • Laws restricted social contact between leprosy patients and the healthy population.
  • Rituals marking a leprosy diagnosis sometimes resembled a "living death," including exclusion from society and symbolic funerals.

Key Terms & Definitions

  • Leprosy (Hansen's disease) — a chronic, infectious disease causing skin lesions and nerve damage.
  • Leprosaria — specialized institutions for isolating and caring for those with leprosy.
  • Stigma — strong negative perception or discrimination attached to a group or disease.

Action Items / Next Steps

  • Review class notes on medieval disease and public health responses.
  • Read assigned textbook chapter on leprosy for further historical examples.