Beyond Bloodletting: 10 Surprising Facts About Medieval Medicine

Medicine in the Middle Ages was a mixture of folklore, superstition, and ancient Greek and Roman medical knowledge.


floral medicine 1738214 640

Many of the practices and beliefs of medieval medicine were influenced by religion and astrology, and the idea that the body was governed by the four humours: blood, phlegm, yellow bile, and black bile.

Medieval Doctors Human anatomy book
Medieval Doctors had very little knowledge of the human anatomy and relied on very basic books and diagrams

Here are some unusual and fascinating facts about medieval medicine:

Urine was a valuable diagnostic tool.

Urine was considered an important diagnostic tool in medieval medicine. Doctors would examine a patient’s urine color, taste, and smell to determine their health.

The urine was also used in a practice called uroscopy, where a physician would hold a flask of urine up to the light and examine its contents for clues to the patient’s condition.

Leeches were a common medical treatment.

Leeches were a popular medical treatment in the Middle Ages. They were used to balance the humours in the body, remove impurities from the blood, and cure a wide range of illnesses. The use of leeches was so common that they were even used in surgical procedures to help control bleeding.

Plague Doctor Methods
Plague Doctor Methods Blood Letting Sucking leech

Bloodletting was a popular treatment.

Bloodletting was a popular medical treatment in the Middle Ages. It was believed that by removing some of the patient’s blood, the balance of the humours in their body would be restored. Bloodletting was performed using leeches or by making incisions in the patient’s skin and letting the blood flow out.

leech g74893284c 640

Medicinal herbs were widely used.

Medicinal herbs were widely used in medieval medicine. They were used to treat a wide range of ailments, from headaches to digestive problems. Many of the herbs used in medieval medicine are still used today in modern medicine, such as chamomile and peppermint.

lavender gbd6b32003 640

Surgery was considered a last resort.

Surgery was considered a last resort in medieval medicine. It was only performed in extreme cases where all other treatments had failed. Surgery was also very risky, as there was no anesthesia or antiseptic, and the risk of infection was high.

Medieval Doctors dissect a human body

Astrology played a role in medicine.

Astrology played a significant role in medieval medicine. It was believed that the position of the stars and planets could influence a person’s health, and astrological charts were used to diagnose and treat illnesses. For example, if a person was born under the sign of Aries, they were believed to be more prone to head injuries.

starry sky gb5dced11d 640

Physicians were highly respected.

Physicians were highly respected in medieval society. They were well-educated and often held positions of power and influence. Physicians were also well-compensated for their services, and some even had their own personal heraldic symbols.

Meeting of doctors at the university of Paris

Medical knowledge was preserved in monasteries.

Much of the medical knowledge of the Middle Ages was preserved in monasteries. Monks were often responsible for copying and translating medical texts from ancient Greek and Roman sources. Monasteries also had their own gardens where medicinal herbs were grown and used in the treatment of illnesses.

young nun cassock with cross around her neck holds book sister is preparing pray monastery

Trepanation was used to treat head injuries.

Trepanation was a surgical procedure used in the Middle Ages to treat head injuries. It involved drilling a hole in the patient’s skull to relieve pressure and allow the brain to expand. Although it sounds barbaric, there is evidence to suggest that the procedure was sometimes successful.

head ga4503be07 640

Aromatherapy was used to treat illnesses.

Aromatherapy was used in medieval medicine to treat a wide range of illnesses. Essential oils were used to stimulate the senses and promote healing. For example, lavender oil was used to treat headaches, and rose oil was used to treat depression.

essential oils g47b81ff50 640

viking life herbs

Popular Medicinal Recipes in Medieval Times


Theriac: A popular panacea believed to treat various ailments and promote general well-being.
Ingredients: A blend of over 60 herbs and substances such as myrrh, opium, viper’s flesh, and honey.
Method: Grind the herbs into a fine powder and mix them thoroughly with the other ingredients. Store in an airtight container.

Rose Hip Syrup: Used for its high vitamin C content and believed to boost the immune system.
Ingredients: Dried rose hips, water, sugar or honey.
Method: Boil the rose hips in water until softened. Mash them and strain the liquid. Return the liquid to the pot, add sugar or honey, and simmer until it forms a syrup-like consistency. Allow it to cool before storing.

Elderberry Tonic: Believed to alleviate symptoms of colds, flu, and respiratory issues.
Ingredients: Elderberries, water, honey, cinnamon, cloves.
Method: Simmer elderberries, water, cinnamon, and cloves together until the berries soften. Mash them, strain the liquid, and add honey to taste. Allow it to cool before consuming.

Digestive Bitters: Used to aid digestion and relieve stomach discomfort.
Ingredients: Dried herbs such as wormwood, gentian root, fennel seeds, chamomile, and angelica.
Method: Combine the dried herbs and steep them in alcohol (such as brandy or vodka) for several weeks. Strain the liquid, bottle it, and take a few drops before or after meals.

Herbal Tea for Sleep: A soothing blend to promote relaxation and improve sleep quality.
Ingredients: Dried herbs like lavender, chamomile, lemon balm, and valerian root.
Method: Mix equal parts of the dried herbs together. Brew a teaspoon of the blend in a cup of hot water for 5-10 minutes. Strain and drink before bedtime.

Please note that these recipes are based on historical knowledge and are provided for informational purposes only. It’s essential to consult with a healthcare professional before using any herbal remedies or attempting historical recipes.


Medieval Medicine | 5 Great Books


“The Body in Balance: Humoral Medicines in Practice” by Donna Bilak
This book explores the theories and practices of humoral medicine, a dominant medical framework in medieval Europe, and provides insights into how health and illness were understood and treated.

“Medieval Medicine: A Reader” edited by Faith Wallis
This anthology offers a collection of primary sources and scholarly essays that delve into various aspects of medieval medicine, including beliefs, treatments, and the role of physicians.

“The Medieval Health Handbook: Tacuinum Sanitatis” by Luisa Cogliati Arano
This book examines the Tacuinum Sanitatis, a popular medieval health manual, and provides an in-depth look at the lifestyle, diet, and medical practices of the time.

“Medieval Herbal Remedies: The Old English Herbarium and Anglo-Saxon Medicine” by Anne Van Arsdall
Focusing on Anglo-Saxon medicine, this book explores the role of plants and herbal remedies in medieval healthcare, drawing from the Old English Herbarium and other sources.

“Medicine and the Making of Middle English Literature: From the Wise Woman to the Self-Taught Doctor” by Stephanie Downes
This book examines the intersection of medicine and literature in the Middle Ages, exploring the portrayal of medical practitioners, healing practices, and medical knowledge in medieval English literature.

Please note that availability of these books may vary, so it’s advisable to check online or at your local library or bookstore for their availability.