For decades, a common assumption has held that cancer is a modern disease, a byproduct of industrial pollution, processed foods, and cigarettes. That assumption is wrong. But the truth about cancer in the ancient world is far more complex and unsettling than a simple yes or no answer. Finding evidence of cancer in ancient remains is genuinely difficult.
Soft tissue tumors affecting organs like the lungs or liver disappear completely when a body decomposes, leaving researchers to rely on bones alone – and bone cancer is one of the rarest forms of the disease. For most of human history, the evidence is incomplete by definition. Yet through this narrow keyhole, researchers have still found cancer. In 2016, scientists examining a burial site in Sudan found clear signs of metastatic cancer in a young male skeleton dated to roughly 3,000 years ago.
The lesions on multiple bones were unmistakable, showing cancer that had spread throughout the body. This individual had no cigarettes, no industrial chemicals, no processed food – just ancient Nubia, and cancer. The evidence goes back much further. In 2020, paleoanthropologists working in South Africa announced the discovery of cancer in hominin fossils dating back nearly 2 million years.
The bones of Australopithecus sediba and Homo naledi showed unmistakable signs of osteosarcoma and meningioma, a type of tumor that grows in the membranes surrounding the brain. Before our species even existed, our ancestors were getting tumors. So how often did ancient humans develop cancer? Almost certainly less often than modern populations.
The obvious factors matter – cigarettes are a recent invention, and industrial carcinogens are real. But a less-discussed factor is age. Cancer is fundamentally a disease of aging, and ancient humans died earlier on average. Staggering infant and child mortality, infections that are now trivially treatable, fatal injuries, and deaths in childbirth meant fewer people reached the age where cancer most commonly strikes.
Ancient humans weren’t protected by clean living. They were partly protected by dying of other things first. The ancient world also wasn’t as carcinogen-free as people imagine. For hundreds of thousands of years, humans lived in intimate proximity to open flames, cooking fires inside enclosed shelters, breathing in wood smoke.
The same compounds that make cigarettes dangerous – polycyclic aromatic hydrocarbons, carbon monoxide, fine particulate matter – are present in wood smoke. Some mummies show blackened lung tissue from a lifetime of breathing smoke in poorly ventilated spaces. Mummies have proven to be unexpectedly valuable research tools. When soft tissue is preserved through embalming, arid conditions, or permafrost, researchers can examine organs that would otherwise have vanished.
Tumors have been found in Egyptian mummies, Peruvian mummies, and frozen remains from alpine glaciers and Siberian permafrost. In one striking case, CT scans of Peruvian mummies from around 1,000 years ago revealed masses consistent with tumors that would have been invisible to any examination without modern imaging. This means the historical absence of cancer records isn’t evidence that cancer was absent. It’s evidence that most ancient societies lacked the diagnostic tools to identify it.
People died of mysterious wasting sicknesses, attributed to curses, imbalances, or the will of gods – deaths that left no medical record. How deadly was the disease? For an ancient human developing cancer, there was essentially no framework for understanding what was happening. The ancient Egyptians were an exception.
The Edwin Smith Papyrus, dating to around 1600 BCE, contains the earliest known written descriptions of what scholars believe to be cancer, describing hard breast tumors that spread. The physician’s assessment is recorded in a haunting phrase: “There is no treatment. ”
Most other ancient cultures had no concept of cancer as we understand it. In ancient Mesopotamia, disease was often understood as divine punishment, with remedies involving religious ritual and incantation.
In ancient China, disease was interpreted through the lens of balance, with tumors seen as blockages or stagnation of qi, treated through acupuncture and herbal medicine. Hippocrates, often called the father of medicine, was the first to use the word that became “cancer. ” He called tumors karkinos, the Greek word for crab, because of the way some tumors extended outward like crab legs. His student Galen later used the Latin word cancer.
But understanding that a tumor looked like a crab and understanding what a tumor actually was are very different things. Some ancient treatments were surprisingly advanced. Trepanation – drilling or cutting holes in the skull – has been documented across dozens of cultures going back at least 7,000 years, with evidence of patients surviving the procedures. Ancient Egyptians and Indians attempted to surgically remove surface tumors, cutting them out and cauterizing wounds to prevent regrowth, though the results were mixed without sterile technique or effective anesthesia.
The Ayurvedic tradition in ancient India documented what appears to be cancer under the term arbuda and prescribed a combination of herbal remedies and surgery. Some of these herbs have been studied by modern pharmacologists and found to contain compounds with genuine anti-tumor properties. Throughout all of this, the human body itself was fighting cancer long before humans understood what cancer was. The immune system destroys precancerous cells constantly – in ancient humans, this system was the same, with tumor suppressor genes and immune surveillance quietly fighting a war against malignancy that the person was completely unaware of, and often winning.
There is also a rarely discussed psychological dimension. An ancient person noticing a lump that grows, causing weight loss and fatigue, had no diagnosis, no prognosis, no treatment plan. In many cultures, illness carried an implied judgment of moral failure or spiritual impurity. That psychological weight on top of physical suffering is genuinely difficult to sit with – and most ancient people died not knowing what was killing them.
Cancer has always been there. It is not a punishment for modern excess, not a product of the industrial age, though the industrial age made it worse. It is a flaw built into the machinery of life itself, into cells copying themselves across a lifetime. That process has been happening in complex animals for hundreds of millions of years.
It happened in the dinosaurs, in our primate ancestors, and in the hominin who walked across South Africa 2 million years ago with a tumor growing in his bones. We haven’t completely solved cancer, but we’ve made extraordinary progress. Immunotherapy, targeted treatments, and early detection have transformed survival rates. The ancient Egyptian physician who wrote “there is no treatment” wasn’t giving up – he was being honest about the limits of his era.
We’re the first generation in the entire 2 million-year history of humans and their ancestors who can say something genuinely different. Not that we’ve won, but that we’re actually fighting on equal terms for the first time.