αὐτοψία

Autopsy derives from Greek αὐτοψία (autopsia), a compound of αὐτός (autós, self) and ὄψις (ópsis, sight, seeing), from ὁράω (horáō, to see). The word means, literally, 'seeing for oneself,' 'seeing with one's own eyes,' a meaning that ancient Greek writers used in philosophical and historical contexts to distinguish direct personal observation from secondhand report. Thucydides distinguishes between autopsia — what he witnessed himself — and what was reported to him by others. In ancient usage, autopsy had nothing specifically to do with the dead; it named the epistemic privilege of the eyewitness. The medical application — examination of a dead body to determine cause of death — arrived in the seventeenth century, when post-mortem dissection became a tool for establishing the anatomical truth about what had killed a patient.

The examination of the dead to understand the living has a history that predates the word's medical application. Ancient Greek physicians, particularly those of the Alexandrian school in the third and second centuries BCE — Herophilus and Erasistratus — conducted systematic human dissection, including vivisection of condemned criminals according to later accounts. Their observations established foundational anatomical knowledge: Herophilus distinguished between tendons and nerves, identified the brain as the seat of intelligence rather than the heart, and described the duodenum (naming it for its length of twelve finger-breadths). The Church's prohibition of human dissection in medieval Europe interrupted this tradition, and the great anatomists of the Renaissance — Vesalius, Harvey, Fallopius — fought to restore it.

The post-mortem examination as a systematic medical practice was developed most rigorously by Giovanni Battista Morgagni, an Italian anatomist at Padua who published De Sedibus et Causis Morborum (On the Sites and Causes of Diseases) in 1761. Morgagni described the findings of nearly seven hundred autopsies and correlated them with the clinical histories of the patients — what symptoms they had shown in life — to locate disease in specific organs. This was the founding act of pathological anatomy: the idea that disease has a physical location in the body and that the post-mortem examination can reveal it. Morgagni's work transformed medicine from a discipline based on symptoms and humors to one based on lesions in specific organs.

Modern forensic autopsy and clinical autopsy serve distinct purposes. The forensic autopsy, performed by a medical examiner or forensic pathologist, establishes cause and manner of death for legal purposes — homicide, suicide, accident, natural causes. The clinical autopsy, performed in hospitals by pathologists, verifies diagnosis, identifies missed diagnoses, and contributes to medical knowledge and quality improvement. Clinical autopsy rates have declined sharply in recent decades as clinicians have grown confident in imaging and laboratory diagnosis; some hospitals perform almost none. Pathologists argue that this is a mistake, that autopsies continue to reveal unexpected findings at significant rates. The eyewitness examination of death remains an act of learning, as the Greek word always said.