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A 4,000-year-old child’s skull discovered in Uzbekistan is offering rare evidence of one of the oldest known surgery in Asia, shedding new light on medical knowledge in the Bronze Age.

The remains belonged to a child who died at about 5 years old. Researchers found clear signs of cranial trepanation, a procedure that involved cutting or drilling into the skull. The discovery represents the oldest documented evidence of surgery in Central Asia and one of the oldest known examples anywhere in Asia.

A joint team of Italian and Uzbek researchers uncovered the skeleton during excavations in the Northern Bactria region of southern Uzbekistan, near the border with Afghanistan.

Evidence of a complex procedure

Archaeologists found the child buried in a single grave alongside another child who died at about 3 years old. Examination of the older child’s skull revealed distinct traces of trepanation that researchers believe were made using stone or bone tools.

Trepanation is among the oldest surgical procedures known to humanity. Archaeologists have documented similar operations in ancient societies across Europe, Africa and Asia. The practice may have been used to treat head injuries, epilepsy, severe headaches or other medical conditions. In some cultures, it may also have served ritual or spiritual purposes.

A 4,000-year-old child’s skull discovered in Uzbekistan contains evidence of cranial trepanation, making it the oldest documented surgery in Central Asia and one of the earliest known in Asia. pic.twitter.com/w1NDyBNpEV

— Tom Marvolo Riddle (@tom_riddle2025) June 3, 2026

Researchers noted that medicine and religion were often closely connected in ancient societies, making it difficult to determine the exact reason for the operation.

The findings also raise questions about the level of medical expertise that existed in Central Asia thousands of years ago. Performing such a procedure would have required specialized knowledge of the human body and considerable technical skill.

A window into the Oxus civilization

The burial was discovered at the prehistoric settlement of Djarkutan, one of the most important urban centers of the Oxus civilization. Researchers dated the grave to the late third millennium B.C.

Also known as the Bactria-Margiana Archaeological Complex, or BMAC, the Oxus civilization flourished across parts of modern-day Uzbekistan, Turkmenistan and Afghanistan between about 2500 and 1500 B.C. The culture is known for its advanced agriculture, urban development and rich material traditions.

Researchers began a broader project to investigate Djarkutan and other aspects of the Oxus civilization in 2024. “Djarkutan continues to surprise us,” excavation director Enrico Ascalone said in a statement. “A cranial trepanation on a child, four thousand years ago, in Central Asia: until yesterday it was unthinkable. Today it is in our data.”

Questions remain unanswered

The discovery has also created new mysteries. Researchers are now investigating who may have performed the operation, what medical knowledge was available at the time and why such a procedure was carried out on a young child.

Evidence of ancient trepanation is relatively common in some parts of the world, but cases involving children of this age remain rare. Further analysis may help researchers understand whether the operation was intended to treat an illness, respond to an injury or fulfill a ritual purpose.

For now, the skull offers a remarkable glimpse into the medical practices, beliefs and capabilities of a Bronze Age civilization that thrived in Central Asia four millennia ago.