Medieval medicine was a complex blend of superstition, religion, and early scientific understanding that shaped healthcare from the 5th to 15th centuries.
Medieval medicine treatments were heavily influenced by the theories of Hippocrates and Galen, who developed the theory of the four humours - blood, phlegm, yellow bile, and black bile. This foundational belief suggested that illness occurred when these bodily fluids became imbalanced. Doctors in Medieval times would attempt to restore balance through various methods including bloodletting, purging, and herbal remedies. The theory of opposites Galen promoted meant that if a patient had a "hot" disease, they would be treated with "cold" remedies.
Health and medicine in the Middle Ages was also deeply intertwined with religious beliefs and supernatural explanations. Medieval beliefs about causes of disease often attributed illness to divine punishment, evil spirits, or bad air (miasma). Treatment of disease in the medieval period typically involved a combination of practical remedies and spiritual interventions. Herbs and plants were commonly used as medicines, with many monasteries maintaining medicinal gardens. Medieval physicians were rare and expensive, typically serving only the wealthy, while most common people relied on local healers, barber-surgeons, or wise women. The prevention of disease in the medieval period focused on maintaining balance in one's life through diet, exercise, and avoiding "bad air." During the Black Death, preventive measures included carrying sweet-smelling herbs and avoiding contact with infected individuals. Despite limited scientific knowledge, medieval practitioners developed sophisticated systems of diagnosis and treatment, many of which were documented in Medieval medicine books that combined practical medical knowledge with astrological and religious elements. This period laid important groundwork for the later development of modern medical practices, though it would take centuries before scientific understanding would replace many of the supernatural and humoral theories that dominated medieval healthcare.