Healing or Harming? Bloodletting and Surgery

One of the most iconic medieval medical practices was bloodletting. Physicians believed that removing excess blood could rebalance the humors and cure diseases such as fevers or inflammation. Performed using lancets or leeches, bloodletting was widespread but risky. Excessive blood loss could weaken or kill patients, leading to the question: did this practice heal or harm?

Surgery was another double-edged sword. While advanced surgical knowledge was limited, barber-surgeons performed procedures such as tooth extractions, wound cleaning, amputations, and cauterizations. The lack of anesthesia, antiseptics, and understanding of infection often made surgery a dangerous last resort.

However, these interventions sometimes saved lives, especially in trauma cases, and contributed to gradual improvements in surgical techniques.

The Role of Herbal Remedies and Pharmacology


Herbal medicine was a cornerstone of medieval healthcare. Monastic gardens cultivated plants like rosemary, sage, and garlic, used in remedies for a wide array of ailments. Apothecaries prepared medicines from plants, minerals, and animal products, often combining these into complex concoctions.

While many herbs had genuine therapeutic effects—some still recognized in modern herbalism—the dosage and preparation were often imprecise, and some remedies were toxic. This mix of natural healing and accidental poisoning further illustrates the delicate balance between cure and kill.

Religion, Magic, and Medicine


Faith permeated medieval medicine. Disease was frequently interpreted as divine punishment or the work of evil spirits. Prayer, pilgrimages to holy sites, relics, and charms were common elements of healing practices.

Simultaneously, magic and superstition influenced treatments, including astrological charts to determine the best times for interventions, and rituals meant to ward off illness. These spiritual and magical approaches sometimes complemented herbal and physical treatments but also risked diverting attention from practical care shutdown123

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