Medieval medicine of Western Europe

Medieval medecine in Western Europe was composed of a mixture of existing ideas from antiquity, spiritual influences and what Claude Lévi-Strauss identifies as the "shamanistic complex" and "social consensus."

In the Early Middle Ages, following the fall of the Western Roman Empire, standard medical knowledge was based chiefly upon surviving Greek and Roman texts, preserved in monasteries and elsewhere. Many simply placed their hopes in the church and God to heal all their sicknesses. Ideas about the origin and cure of disease were not purely secular, but were also based on a world view in which factors such as destiny, sin, and astral influences played as great a part as any physical cause. The efficacy of cures was similarly bound in the beliefs of patient and doctor rather than empirical evidence, so that remedia physicalia (physical remedies) were often subordinate to spiritual intervention.

The Western medical tradition often traces roots directly to the early Greek civilization, much like the foundation of all of Western society. The Greeks certainly laid the foundation for Western medical practice but much more of Western medicine can be traced to the Middle East, Germanic, and Celtic cultures. The Greek medical foundation comes from a collection of writings known today as the Hippocratic Corpus. Remnants of the Hippocratic Corpus survive in modern medicine in forms like the “Hippocratic Oath” as in to “Do No Harm.”

The Hippocratic Corpus, popularly attributed to an ancient Greek practitioner known as Hippocrates, lays out the basic approach to health care. Greek philosophers viewed the human body as a system that reflects the workings of nature and Hippocrates applied this belief to medicine. The body, as a reflection of natural forces, contained four elemental properties expressed to the Greeks as the four humors. The humors represented fire, air, earth and water through the properties of hot, cold, dry and moist, respectively. Health in the human body relied on keeping these humors in balance within each person.

...
Wikipedia