In a breakthrough that marks a historic milestone for both robotics and medicine, surgeons at the University of California San Diego have successfully used humanoid robots to perform live surgical procedures for the first time ever. The groundbreaking achievement, published in the journal Nature in July 2026, demonstrates that compact, lightweight humanoid robots can be teleoperated to complete real surgical tasks — potentially transforming how surgery is delivered in underserved and remote communities worldwide.

The Surgie Robot: Lightweight, Affordable, and Portable

The humanoid system, nicknamed “Surgie,” is built on a Unitree G1 platform and weighs just 27 kilograms (60 pounds) — a fraction of the 800-kilogram mass of traditional robotic surgery systems like the da Vinci. Standing just 1.5 meters tall, Surgie is compact enough to wheel into small clinics, field hospitals, or even military deployment settings without any special operating room infrastructure.

“It’s a fraction of the cost, and it takes a fraction of the space in an operating room,” says Dr. Shanglei Liu, assistant professor of surgery at UC San Diego School of Medicine and one of the study’s lead authors. “So it’s easy to deploy, anywhere from rural areas to the battlefield and even to space.”

The key innovation is not just the robot’s size — it’s the system’s ability to use standard surgical tools fitted with custom adapters. The robotic hands grip and maneuver conventional instruments that surgeons already know how to use, eliminating the need for expensive proprietary surgical toolsets.

Two Procedures, Two Historic Firsts

The UC San Diego team conducted two distinct surgical procedures on large non-primate mammals, each representing a different level of robotic autonomy:

Procedure 1: Human-Robot Team Surgery — A humanoid robot and a human surgeon working together completed a cholecystectomy (gallbladder removal). The human surgeon assisted in an advisory role while the robot performed the primary surgical tasks.

Procedure 2: Fully Autonomous Robot Surgery — Two humanoid robots worked together to complete a surgical procedure entirely on their own, with no human assistant in the loop. This represents the first time two humanoid robots have ever collaborated to perform surgery without direct human intervention.

Both procedures progressed through stages: starting with lab simulations, advancing to animal trials, and culminating in the live surgical procedures. While the results were promising, the researchers noted that the robots required recalibration mid-procedure, operations took longer than conventional methods, and latency — the delay between a surgeon’s hand movement and the robot’s response — remains a challenge for any teleoperated surgical system.

Addressing the Global Surgeon Shortage

The real target behind this research is the growing global shortage of surgeons and the surgical backlogs it creates. According to the World Health Organization, low- and middle-income countries face severe deficits in surgical workforce capacity, with millions of people unable to access timely surgical care each year.

Traditional surgical robots like the da Vinci system address none of these problems. They cost millions of dollars, require specially designed operating rooms, and demand extensive training for surgeons to operate them effectively. Surgie, by contrast, is designed from the ground up for portability and accessibility.

“Many communities struggle with adequate staffing on the surgical team, which means patients are not being treated,” says Dr. Michael Yip, a UC San Diego engineering professor and co-author of the study. “Our goal is an operating theater of the future, where humanoid robots and humans work side by side as an integrated team to deliver procedures to those in need, both in traditional hospital settings as well as in non-traditional, field medicine scenarios.”

How the Teleoperation System Works

The surgeons control Surgie remotely using a master-slave teleoperation interface. Standard surgical tools are fitted with specially designed adapters that allow the robotic hands to grip and maneuver them with precision. The system includes force feedback so surgeons can feel the resistance and texture of tissues they’re working with.

The testing pipeline followed rigorous protocols:

• Lab simulations: Virtual environments where surgeons practiced controlling the robots
• Animal trials: Controlled procedures on animal models to validate precision and safety
• Live surgery: The final milestone — real surgical procedures on living subjects

Dr. Ryan Broderick, interim director of UC San Diego’s Center for the Future of Surgery, personally operated one of the robots during the trials. “This achievement reflects the power of bringing engineers and surgeon innovators together to solve meaningful clinical problems at our world-class training and research lab,” he says.

The Broader Humanoid Robot Surgery Landscape

The UC San Diego breakthrough comes at a time when humanoid robots are rapidly moving from factory floors into healthcare settings. A Morgan Stanley report from June 2026 projects that China — the current leader in humanoid robot manufacturing — will produce 446,000 humanoid units annually by 2030, with full-size humanoids growing from 30% market share in 2026 to 70% by 2028.

The implications for surgical robotics are significant. While today’s surgical robots are massive, expensive, and require dedicated operating rooms, humanoid robots offer the possibility of bringing surgical capability to locations that currently have none. A field hospital in a disaster zone, a rural clinic in a developing country, or a military deployment — all could potentially benefit from a surgical robot that weighs 27 kilograms and fits through a standard doorway.

Challenges and Next Steps

The researchers acknowledge several challenges that need to be addressed before humanoid surgical robots become practical tools:

• Latency: The delay between surgeon input and robot response must be minimized for precise surgical work
• Recalibration: Robots required mid-procedure recalibration, which would need to be eliminated for clinical use
• Regulatory approval: Human trials will require extensive safety data and regulatory review
• Training: Surgeons will need new protocols for operating these robotic systems

Despite these challenges, the team envisions humanoid robots eventually doing more than assisting in surgery — fetching instruments, tidying the room, or working alongside human staff as full team members in the operating theater of the future.

What This Means for the Future of Medicine

The UC San Diego breakthrough represents a paradigm shift in surgical robotics. For the first time, we have evidence that compact, affordable humanoid robots can perform real surgical tasks. While the technology is still in its early stages, the trajectory is clear: the operating room of the future will likely feature humanoid robots working alongside human surgeons, extending the reach of surgical care to communities that currently have none.

The combination of low cost, portability, and the ability to use standard surgical tools makes humanoid surgical robots a potentially transformative technology for global health equity. As the technology matures and regulatory frameworks develop, we may see these systems deployed in the places where they’re needed most — rural clinics, disaster relief operations, and underserved communities worldwide.