Do No Harm: Stories of Life, Death, and Brain Surgery (2014) is a medical memoir by British neurosurgeon Henry Marsh. Organized as a series of vignettes titled after specific medical conditions, the book provides an unflinching look into the high-stakes world of neurosurgery. Marsh recounts pivotal cases from his long career at a London hospital, detailing his triumphs, most devastating failures, and the profound ethical dilemmas he has faced. The memoir explores themes of Professional Accountability and the Inevitability of Error, The Ethics of Surgical Intervention, and the persistence of Bureaucracy as an Impediment to Patient Care.

Marsh’s work is situated within a literary tradition of physician-authors such as Atul Gawande and Oliver Sacks, who blend clinical narrative with philosophical reflection. Do No Harm was a New York Times bestseller and received numerous accolades, winning the PEN Ackerley Prize and the South Bank Sky Arts Award, and being shortlisted for the Guardian First Book Award and the Costa Book Award. A significant portion of the book details Marsh’s pro bono work in post-Soviet Ukraine, which was also the subject of the Emmy-winning 2007 documentary The English Surgeon. Marsh has since published two subsequent memoirs, Admissions: Life as a Brain Surgeon (2017) and And Finally: Matters of Life and Death (2022).

This guide refers to the 2016 Picador paperback edition.

Content Warning: The source material and study guide feature depictions of illness, death, death by suicide, suicidal ideation, addiction, mental illness, child death, animal death, and cursing.

Summary

Henry Marsh is a senior consultant neurosurgeon at a London hospital, and his memoir recounts the cases, crises, and reflections of a career spent operating on the human brain. Rather than following a single chronological narrative, the book is organized as a series of interconnected chapters, each titled after a medical condition, weaving together surgical cases, personal history, ethical dilemmas, and institutional frustrations. Marsh writes with unflinching honesty about both his successes and failures, exploring what it means to hold another person’s life in one’s hands.

The book opens with Marsh operating on a man with a pineocytoma, a rare tumor of the pineal gland deep in the center of the brain. The patient, a company director, faced sight loss and death without treatment. Marsh was anxious, haunted by a recent operation on a young woman with a spinal cord tumor who awoke paralyzed, likely because he removed too much. However, the man’s tumor was benign, and the operation succeeded. Afterward, Marsh visited the paralyzed young woman, reassuring her that she would likely regain mobility. She stated that the unexpected surgical complications had eroded her trust, but she ultimately believed him. Marsh then told the company director’s wife that everything went well, allowing himself a brief celebration. 

Marsh traces his path into medicine, explaining that he came from a privileged background and abandoned his degree at Oxford University because of unrequited love. He then worked as a hospital porter in a northern English mining town, where he decided to become a surgeon. He entered the Royal Free Medical School after a five-minute interview about fly-fishing. Years later, as a junior doctor in an intensive care unit, he fell in love with neurosurgery while watching a neurosurgeon clip a ruptured cerebral aneurysm under a microscope. He also recounts a formative failure: As a young houseman, he dismissed a breathless patient’s symptoms as anxiety, only to hear the man’s breathing stop. The patient died of a heart attack that Marsh had failed to recognize. The dying man’s despairing expression still haunts him.

Several chapters illustrate the extremes of neurosurgical life. Marsh describes operating on Melanie, a pregnant woman going blind from a meningioma, a tumor of the brain’s lining, that pressed on her optic nerves. He removed the tumor, and the obstetricians delivered her baby under the same anesthetic. Melanie awoke able to see. But on that same day, another patient with a malignant brain tumor suffered a fatal post-operative hemorrhage, and Marsh had to tell her husband and daughter she would die within hours. In another chapter, Marsh recounts the experience of his infant son, William, being diagnosed with a brain tumor at three months old. The surgery succeeded, and the tumor proved benign, but this experience of being an anxious, angry relative was an important part of his medical education.

Marsh devotes significant attention to his work in Ukraine, which began in 1992 when he visited Kyiv (then Kiev) and found hospitals in a dire condition. He met Igor Kurilets, a junior doctor who was the only Ukrainian willing to admit that the neurosurgical situation was terrible. Marsh arranged for Igor to train in London, then supported him through years of opposition from the Ukrainian medical establishment, driving second-hand equipment to Kyiv and performing operations never before done in the country. His Ukrainian work also included one of his most painful cases. Tanya, an 11-year-old girl from the remote town of Horodok, presented with an enormous tumor deemed inoperable in both Moscow and Kyiv. Marsh brought her to London, where the first operation went well, but the second caused a severe stroke. Tanya returned to Ukraine more disabled than when she arrived and died 18 months later. Years later, a film crew took Marsh to visit Tanya’s grave while making the award-winning documentary film, The English Surgeon. Marsh discovered that Tanya’s father had also died, murdered in Poland while working as a laborer. 

Marsh is candid about his catastrophic errors. Early in his consultant career, he operated for 15 hours on a schoolteacher with a petro-clival meningioma, a benign tumor growing beneath the brain near the brainstem. Rather than stopping when most of the tumor was removed, he pressed on to remove the last piece, tearing a tiny branch off the basilar artery. The patient never woke up and remained in a “vegetative state” for years. The experience taught Marsh not to pursue perfectionism when the risk is too great and to treat spectacular claims at surgical conferences skeptically. In another case, he misdiagnosed a post-operative streptococcal infection based on a phone call, delaying treatment and leaving the patient almost completely paralyzed for life. Marsh told the family to sue him and admitted his mistake. The case was deemed indefensible and settled for £6,000,000. 

Woven throughout these surgical narratives are reflections on the institutional dysfunction of the National Health Service (NHS): morning meetings disrupted by computer failures, operating lists derailed by bed shortages, and a mandatory training seminar where a lecturer with a background in catering instructed staff on empathy. Marsh also served on a committee of the National Institute for Health and Care Excellence (NICE) evaluating an expensive cancer drug, hearing dying patients plead for access while economists debated cost-effectiveness. He privately reflected that the real value of such drugs lies in the hope they offer patients. Still, he kept this thought to himself, believing that the medical profession should resist inflated pharmaceutical prices.

The book’s most emotionally intense passages concern Marsh delivering devastating news. He describes visiting David, a management consultant he had treated for 12 years for a slowly growing brain tumor, who was dying in a hospital. Marsh knelt beside David’s bed and told him further surgery would only prolong dying. Holding his patient’s hand, he told him it had been “an honor” and embraced David’s weeping wife before driving away in tears. Marsh also reflects on his mother’s death from metastatic breast cancer as a model of what a good death can be: at home, after a long life, cared for by her own children, without pain. Near the end, she told her family it had been a wonderful life and that they had said everything there was to say.

The book concludes with Marsh operating on Will, a plumber and woodcut engraver whose petro-clival meningioma closely resembled the tumor that caused his worst disaster decades earlier. During surgery, Marsh nearly severed Will’s vertebral artery, obscured by scar tissue from a previous operation. He then spent four hours removing the tumor from around the brainstem. During the final check, a spray of arterial blood erupted from the basilar artery, the critical vessel supplying the brainstem. Marsh packed it with a microscopic piece of muslin and waited. The bleeding stopped. To his astonishment, Will awoke without a major stroke. His facial nerve was completely intact. Will had numbness, double vision, and deafness in one ear, but he was alive and talking. The next morning, he sat up, ate cornflakes, and thanked Marsh for saving his life.