Humanoid Robots Perform First Surgery in Landmark Trial

For the first time in medical history, teleoperated humanoid robots have successfully performed live surgery, marking a paradigm shift in the integration of robotics and medicine. Researchers at the University of California San Diego (UC San Diego) reported in the journal Nature on July 8 that two humanoid robots nicknamed “Surgie” completed laparoscopic gallbladder removals on large non-primate mammals in two distinct configurations: a human-robot team and a fully robot-robot team. The proof-of-concept study demonstrates that off-the-shelf humanoid platforms can achieve surgical precision comparable to specialized million-dollar systems, potentially expanding access to surgical care in underserved regions.

The Breakthrough

The robots, based on the Unitree G1 humanoid platform manufactured by China’s Hangzhou Yushu Technology Co., performed the procedures via teleoperation. A surgeon at a control console used motion capture, foot pedals, and tracking hardware to translate natural hand and arm movements into corresponding robot arm movements. Researchers built custom adapters to mount standard laparoscopic instruments to the robot’s grip, requiring no structural modifications to the operating room.

In one configuration, a single humanoid robot worked alongside a human surgeon acting as assistant. In the second, two humanoid robots completed the procedure together with no human on the sterile side of the operating table. According to UC San Diego Today, both procedures were successful.

“As a proof of concept, it absolutely worked,” said Dr. Ryan Broderick, interim director of the Center for the Future of Surgery at UC San Diego, as reported by the New York Post.

A Fraction of the Cost, a Fraction of the Space

The study’s significance lies not just in what was achieved, but in the hardware that achieved it. Traditional surgical robotic systems, such as Intuitive Surgical’s da Vinci platform, weigh approximately 1,800 pounds, cost between $1.8 million and $2.5 million, and require purpose-retrofitted operating rooms with large specialized teams. By contrast, the Unitree G1 stands just five feet tall, weighs 60 pounds, and costs a fraction of the price — making it viable for deployment in rural clinics, battlefield hospitals, and even space missions.

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

Co-author Dr. Nikita Thareja, a general surgery resident, noted that the workflow integration exceeded expectations. “We were surprised at how well Surgie meshed with our workspace and workflow.”

Addressing the Surgical Workforce Crisis

The research is motivated by a deepening crisis in surgical access. The Association of American Medical Colleges projects a shortfall of 10,100 to 19,900 surgeons by 2036, while the Health Resources and Services Administration forecasts a broader physician shortage exceeding 187,000 by 2037. Roughly 20% of Americans live in rural communities, but only about 9% of physicians practice there — a disparity even more pronounced for surgical specialists.

Michael Yip, a faculty member in UC San Diego’s Department of Electrical and Computer Engineering and a senior author, framed the stakes directly: “Remotely operated and autonomous humanoid robots have real potential for amplifying access to critical surgeries to which patients would otherwise not have access. This can help address the healthcare crisis not only in the United States, but also worldwide.”

Limitations and Regulatory Pathway

Despite the breakthrough, significant hurdles remain before humanoid robots enter human operating rooms. The robots required multiple recalibrations during procedures, significantly extending operating time. Latency — the communication delay between surgeon and robot — remains an active challenge the team is working to address.

Crucially, this was a preclinical in-vivo feasibility study on animals, not human patients. The pathway to human clinical use requires additional preclinical validation, an Investigational Device Exemption application to the FDA, first-in-human safety trials, efficacy trials, and regulatory clearance — a process that researchers estimate will take a minimum of several years, more likely a decade, for a novel device category with no existing regulatory framework.

“Our study provides an evidence-based assessment of current humanoid abilities and limitations for surgical applications, highlighting both their promise and key technical challenges that must be addressed before clinical deployment,” the authors wrote in Nature.

The Platform Paradox: National Security Concerns

The achievement is complicated by the fact that the Unitree G1 hardware at the center of the breakthrough was added to the U.S. Department of Defense’s Section 1260H list of Chinese Military Companies on June 8, 2026 — just 30 days before the Nature paper was published. As reported by TechTimes, the Pentagon’s rationale cites Unitree’s alleged indirect ownership by China’s State-owned Assets Supervision and Administration Commission and its designation as a “Little Giant” company tied to Chinese military planning.

Independent security researchers at Alias Robotics published a comprehensive audit in September 2025 documenting that the Unitree G1 continuously transmits sensor data — including audio, video, LiDAR, and GPS location — to servers in China every five minutes without operator notification. A wormable Bluetooth exploit (UniPwn) was also disclosed, affecting every Unitree unit ever manufactured. Unitree acknowledged the vulnerabilities and stated patches were being rolled out, though no independent third-party audit confirming remediation has been published.

What’s Next

The research team’s longer-term vision extends beyond teleoperation. “One of our goals is to develop the autonomous surgical assistant,” Yip said. “Many communities struggle with adequate staffing on the surgical team, which means patients are not being treated. Our goal is an operating theatre of the future, where humanoid robots and humans work side by side as an integrated team.”

Whether that future will be built on Unitree hardware, an alternative humanoid platform, or a purpose-built surgical robot incorporating humanoid design principles remains an open question. What the Nature study has established is that the capability itself is viable — and that the era of humanoid robots in surgery has begun.

High-resolution images of the teleoperated humanoid robot surgery are available via UC San Diego’s Flickr album.