Wounds of the Onin War: Surgeons on the Streets
The Onin War turns neighborhoods into battle wards. Itinerant surgeons extract arrows, cauterize wounds, and reset fractures; apothecaries pound moxa and herbs for pain and fever. Ruins, smoke, and famine invite disease — and new improvisations in care.
Episode Narrative
In the early 1300s, Japan stood at a crossroads of tradition and transformation. The foundation of its medical practice was heavily informed by traditional Chinese medicine, especially through a system known as Kampo. This sophisticated herbal medicine had found a home in Japanese culture since its introduction in the 6th century. As the 15th century approached, the nation's capital, Kyoto, teetered on the brink of upheaval. This era would soon plunge into chaos, marked by the devastating Onin War.
Between 1467 and 1477, Kyoto transformed into a battlefield, where tranquil neighborhoods were reduced to ruins, screaming reminders of a society in upheaval. The Onin War ignited bitter internal strife among feudal lords, leading to a struggle for power that would rip apart the very fabric of urban life. Amidst this turmoil, the streets of Kyoto became a stage for a different kind of battle — a struggle for life itself. It was here that itinerant surgeons emerged, thrust into emergency situations where they performed life-saving procedures under dire circumstances. These men and women extracted arrows from the wounded, cauterized open wounds, and reset broken bones. Their work was not conducted in the sterile environment of a hospital but in makeshift clinics or even on the streets, showcasing the improvisational nature of medical care during this catastrophic period.
As chaos descended on Kyoto, reliance on traditional therapies did not wane. Apothecaries became a vital resource, preparing herbal remedies and practicing moxibustion — burning mugwort on or near the skin to alleviate pain and promote healing. Even in the face of war, the cultural roots of healing remained deep, intertwining with the very survival of the community. The persevering spirit of the people was found not only in their resilience but also in their adherence to longstanding medical practices that had been validated over centuries.
The framework of Japanese medicine at this time was further cemented by the Ishitsu-rei, Japan’s first formal medical law established as early as 701 CE. This legal document continued to govern medical practices, regulating acupuncture and other popular treatments, making them accessible to the common people. It served as an enduring anchor during a time when societal norms were being shattered. During the Late Middle Ages, medical practitioners in Japan often inherited their skills, yet there was a notable openness to non-aristocratic practitioners. Itinerant surgeons and general practitioners were crucial, bridging the gap between the elite and the commoners in their quest for healing.
The Onin War also marked a period of significant displacement. Many established medical practitioners found themselves scattered, forcing them into roles as itinerant caregivers. This shift from a court-centered medical system to a more decentralized one was indicative of the broader social disarray. The medical landscape morphed dramatically, with practitioners of healing — both learned and lay — now forced to navigate the perilous streets, offering aid where chaos reigned.
In many ways, the interplay between medicine and religion also shaped the medical practices of this era. Buddhist monasteries became centers of healing, where monks would cultivate herbal medicines and dispense care to the suffering. This fusion of spiritual and practical healing methods formed a crucial part of the medical ecosystem, binding together communities through shared beliefs and practices.
Despite the reliance on traditional medicine, Japan remained largely untouched by Western medical practices until the mid-16th century. The country’s relative isolation safeguarded its medical traditions, fostering a unique environment that continued to grow and evolve against the backdrop of turmoil. Yet, with the devastation of the Onin War, outbreaks of disease became rampant, fueled by famine and destruction. Though records are scarce regarding specific illnesses, it is evident that traditional remedies became the primary recourse for managing these medical crises.
Kampo medicine, with its roots in Chinese herbal formulas, was the backbone of care during these tumultuous times. Practitioners, utilizing complex pattern diagnoses, tailored their treatments to each individual — a practice that had evolved since the 7th century and was well established by 1500. In this era, even tea, once a bitter medicinal herb, had transformed into a popular beverage. Innovations such as stone tea grinders and bamboo whisks allowed for its wider consumption, paralleling cultural shifts in the understanding and application of herbal medicine.
As the war continued to ravage Kyoto, the role of apothecaries flourished. They became essential figures, dispensing not only medicinal herbs and moxa but also counseling the vulnerable amidst the ruins. They collaborated with itinerant surgeons and Buddhist healers, reinforcing a communal approach to healthcare that was both practical and deeply human.
Yet it is crucial to remember that while medical practices adapted and evolved, they remained subject to the cornerstone established by Ishitsu-rei. This legal structure informed the roles of surgeons and acupuncture practitioners, ensuring that some level of order persisted in a world teetering on the edge of total collapse. Continuity existed in the chaos, reminding society that knowledge and healing could still prevail, even in its darkest hours.
As the dust began to settle after the Onin War, Kyoto faced not only the physical destruction left behind but also the psychological scars borne by its people. The legacy of that time is not merely one of violence but rather a testament to resilience. Communities pulled together in the face of loss; reliance on traditional medicine became more than a necessity — it was an act of defiance against the chaos that threatened to swallow them whole.
Furthermore, the period from 1300 to 1500 shaped the foundations of future medical practices in Japan. In time, the Edo period would usher in Western medicine, but the lessons learned from the Onin War remained deeply entrenched in Japan's healthcare narrative. The practices, customs, and commitment to herbal medicine set the stage for a melding of ancient wisdom with new knowledge, creating a unique tapestry of healing that would evolve in the centuries to follow.
In the end, the vision of those itinerant surgeons on the war-torn streets of Kyoto embodies a larger story — a story of survival, adaptation, and a relentless human spirit. They stood as quiet symbols of hope amidst ruins, stitching together the fabric of a society torn apart, their hands embodying not just the art of healing, but the essence of humanity itself.
As we reflect on this turbulent period, we are left with this poignant question: In the face of chaos, how do we adapt our knowledge and skills to not just survive, but to heal? The echoes of the past remind us that even amid destruction, the pursuit of care remains a timeless journey.
Highlights
- By the early 1300s, Japanese medicine was heavily influenced by traditional Chinese medicine, especially through the practice of Kampo, a system of herbal medicine that had been adapted locally since its introduction in the 6th century CE. - In 1300-1500 CE, the Onin War (1467-1477) devastated Kyoto, turning neighborhoods into battlefields where itinerant surgeons performed emergency care such as extracting arrows, cauterizing wounds, and resetting fractures amidst ruins and famine, highlighting the improvisational nature of medical care during wartime. - During the Onin War period, apothecaries prepared moxa (moxibustion) and herbal remedies to treat pain and fever, reflecting the continued reliance on traditional therapies despite social upheaval. - The Ishitsu-rei, Japan’s first medical law established in 701 CE, continued to influence medical practice through the Late Middle Ages, regulating acupuncture and other treatments, which remained popular and accessible to common people by the 1300-1500 period. - Buddhist monasteries played a key role in medical knowledge transmission and care provision during this era, often serving as centers for herbal medicine cultivation and treatment, linking religious and medical practices. - The medical profession in Japan during the Late Middle Ages was often hereditary but also open to practitioners outside the aristocracy, including itinerant surgeons and general practitioners who served both court and common people. - Despite the dominance of traditional medicine, there was a notable absence of Western medical influence in Japan during 1300-1500 CE due to Japan’s relative isolation before the arrival of Europeans in the mid-16th century. - The period saw frequent outbreaks of disease exacerbated by war, famine, and urban destruction, though detailed epidemiological records from this era are scarce; however, traditional medicine and folk remedies were the primary recourse for disease management. - Kampo medicine, based on Chinese herbal formulas, was the backbone of treatment for pain and other ailments, with practitioners using complex pattern diagnosis (Sho) to tailor treatments, a practice that had been evolving since the 7th century and was well established by the 1300-1500 period. - Tea, initially introduced as a medicinal herb in earlier centuries, became more widely consumed by the 1300-1500 period, with innovations such as stone tea grinders and bamboo whisks transforming it from a bitter medicine to a popular beverage, reflecting broader cultural and medicinal trends. - The Onin War’s destruction of Kyoto led to the displacement of medical practitioners, who became itinerant surgeons providing battlefield and street-level care, a shift from court-centered medicine to more decentralized, practical medical services. - Moxibustion (burning of mugwort on or near the skin) was a common treatment for wounds and pain during this period, often used by both professional and lay practitioners, reflecting its accessibility and cultural importance. - The period’s medical texts and knowledge were primarily transmitted in Chinese characters, with Japanese physicians reading and adapting Chinese medical classics, though vernacular Japanese medical writings began to appear more frequently. - The social upheaval and famine during the Onin War increased vulnerability to infectious diseases, though specific disease outbreaks are not well documented; traditional herbal and acupuncture treatments were the mainstay of care. - The role of apothecaries expanded during this period, as they prepared and dispensed herbal medicines and moxa, often working alongside itinerant surgeons and Buddhist healers in urban and rural settings. - Visuals for a documentary could include maps of Kyoto before and after the Onin War, illustrations of moxibustion and arrow extraction techniques, and depictions of itinerant surgeons working in war-torn streets. - The medical system was still largely influenced by the Ishitsu-rei legal framework, which formalized medical roles and practices, including surgery and acupuncture, ensuring some continuity despite the chaos of war. - The integration of religious and medical practices was significant, with Buddhist temples serving as centers for healing and repositories of medical knowledge, a tradition dating back centuries and persisting through the 1300-1500 period. - The period set the stage for later medical developments in the Edo period, where Western medicine would begin to be introduced, but during 1300-1500 CE, medicine remained rooted in traditional Chinese-derived practices adapted to Japanese contexts. - The scarcity of formal hospitals meant that much medical care was delivered in homes, temples, or on the streets by itinerant practitioners, reflecting a decentralized and pragmatic approach to health care during times of conflict and social disruption.
Sources
- https://link.springer.com/10.1007/s44195-025-00088-8
- https://onlinelibrary.wiley.com/doi/10.1002/9780470670606.wbecc0090
- http://biorxiv.org/lookup/doi/10.1101/2025.09.18.676881
- https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.4918
- https://www.tandfonline.com/doi/full/10.1080/09555803.2022.2077408
- https://www.semanticscholar.org/paper/33b4b6f7f25108ebd6c7b1cc24ccb4f172ad1cf8
- https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GC009597
- http://link.springer.com/10.1007/s40122-020-00160-w
- https://cp.copernicus.org/articles/10/1905/2014/
- https://www.semanticscholar.org/paper/e1222028a4720234bc27c92b92b9ac560345c107