Can the name “AI robot” alone tell us that a procedure is more precise? Based on how ARTAS works and on research that directly compared it with human FUE, we explain the advantages and limitations that have been confirmed so far.
Like robot vacuums or self-driving cars, the words “robot” and “AI” give the impression that the entire process is handled automatically without human involvement. However, current robotic hair transplant systems are not devices that perform the entire surgery independently in place of a physician. The physician plans the surgery and configures the equipment, and the judgment and hands of the medical team are also required for selecting the harvested follicles and transplanting them into the necessary areas.
Based only on the small-scale comparative study published so far, it is difficult to conclude that ARTAS robotic hair transplant is superior to FUE performed by an experienced physician. Rather than the name of the device, the surgeon’s experience, donor area management, minimizing follicle damage, and the entire design and transplantation process should be considered together.
A video look at the robotic hair transplant comparison
01What kind of procedure is robotic hair transplant?
Hair transplant can be broadly divided into the incision method (FUT), in which a strip of scalp tissue is harvested, and the non-incision method (FUE), in which follicular units are harvested one by one with a small punch. FUE avoids a linear incision scar, but because it requires repeatedly harvesting numerous follicles while checking their direction and angle, the operator’s skill and concentration are important.
ARTAS is a computer-assisted system that analyzes the position and direction of hairs through imaging and aligns the punch with a robotic arm to assist in follicular unit harvesting. In other words, it is more accurate to understand it as the same FUE surgical principle, with a machine assisting part of the follicle harvesting process.
02Is ARTAS a robot that replaces the physician?
After being unveiled in the late 2000s, the ARTAS system began receiving marketing clearance in the United States in 2011 as a device that assists with follicular unit harvesting. Its imaging analysis and harvesting functions were subsequently improved, and in 2018 ARTAS iX was introduced, which also assists with the recipient site incisions for the harvested follicles.2, 3
However, the FDA’s early descriptions also define ARTAS as a system that assists the physician in identifying and harvesting follicles. Designing a hairline suited to the patient, evaluating the donor area, determining the harvesting range and density, sorting and storing follicles, and adjusting the direction and density of transplantation must still be handled by the medical team.
Image-based analysis of follicle position and angle → punch alignment → assistance with repetitive follicle harvesting or recipient site incisions
Assessing suitability for surgery → design → donor area preservation strategy → equipment setup and supervision → follicle quality management → transplantation considering direction, angle, and density → post-operative care
03A study directly comparing robot and human
In 2024, a study directly comparing ARTAS with conventional FUE harvesting was published in the Journal of Cosmetic Dermatology. It was a prospective, randomized, assessor-blinded, split-scalp pilot study conducted at Huashan Hospital, Fudan University in China, involving 13 men aged 25–35 with androgenetic alopecia.1
Each patient’s occipital donor area was divided into left and right sides, with ARTAS used on one side and physician-performed FUE on the other. Because the two methods were compared within the same patient, this design has the advantage of partly reducing differences arising from individual hair thickness or scalp characteristics.
04What are yield rate, discard rate, and transection rate?
To understand follicle harvesting performance, the meanings of these three indicators must first be distinguished.
The proportion of punch harvesting attempts that actually obtained a follicular unit.
The proportion of harvested follicles that could not be used for transplantation due to damage or other reasons and were discarded.
The proportion of follicles partially cut during the harvesting process. It may also include cases where only some hairs within a follicular unit were damaged.
Figures reported in the paper
| Evaluation indicator | ARTAS | Human FUE | Statistical difference |
|---|---|---|---|
| Yield rate | 82.05% | 90.03% | Not significant |
| Discard rate | 10.71% | 5.46% | Significant (p<0.05) |
| Transection rate | 13.17% | 13.96% | Not significant |
※ The video subtitles show the ARTAS yield rate as 80.05%, but the average stated in the paper’s results text and Table 2 is 82.05%. This article follows the figures in the original paper.
05How should these results be interpreted?
The researchers concluded that the current generation of robotic hair restoration technology is effective and safe and can be used for hair transplantation in androgenetic alopecia. In fact, in this study there was no significant difference in patient satisfaction, and no intraoperative or postoperative adverse effects or complications were reported.1
However, “can be used” and “is superior to a human” are different claims. Among the three indicators, the one with a statistically significant difference was the discard rate, which was 10.71% for ARTAS and 5.46% for human FUE. The yield rate was numerically higher for human FUE but not statistically significant, and the transection rate was 0.79 percentage points lower for ARTAS, but this too was not statistically significant.
- It is a single-center pilot study involving only 13 patients.
- It was limited to Chinese men aged 25–35 with Norwood-Hamilton II–IV.
- Results may vary depending on equipment settings, the operator’s experience, and hair characteristics.
- Follicle harvesting indicators do not directly indicate long-term graft survival rates or the naturalness of the completed hairline.
Therefore, it is difficult to draw firm conclusions about the outcomes of all robotic procedures from this single study, or conversely to generalize that robots are superior to humans. Multicenter studies with larger numbers of patients and comparisons of long-term graft survival rates are needed.
06Advantages and practical limitations of robotic hair transplant
What can be expected
- Automation of repetitive harvesting motions
- Assistance with follicle identification based on image analysis
- Consistent motion within the configured conditions
- Possible reduction in the operator’s physical fatigue
Limitations to consider at present
- The entire surgery is not automated
- Possible constraints related to hair and scalp characteristics, positioning, and so on
- Equipment and consumable costs may be reflected in the surgical fee
- Evidence that it is superior to an experienced physician is still insufficient
07Surgical criteria to check before considering the machine
The outcome of a hair transplant is not determined by the follicle harvesting device alone. Before asking whether a robot is used, please check the following during your consultation.
- The scope handled directly by the operating surgeon — who handles which parts of the design, harvesting, and transplantation
- Donor area preservation plan — whether not only the current extent of hair loss but also the possibility of future progression is considered
- Follicle quality management — whether there is a system for sorting, storing, and checking for damage after harvesting
- Natural design — whether facial proportions and the direction and thickness of existing hair are reflected
- Sufficient explanation and follow-up care — whether the possible outcomes and limitations, and the post-operative course, are explained in detail
As technology advances, the performance of robots may continue to improve. At the current stage, however, it is difficult to say that better results are guaranteed simply because a robot is used. Hair transplantation is a procedure connected not only to harvesting but also to donor area management, follicle preservation, design, and the direction and density of transplantation. Rather than the name of the device, it is a priority to check the experience and principles of the medical team responsible for this entire process.
Robotic Hair Transplant FAQ
Q. Does ARTAS perform the entire surgery at the push of a button?
No. It is a device that assists with some parts of the process, such as follicle analysis and harvesting, and the involvement of the medical team is required for surgical planning and settings, follicle management, transplantation, and more.
Q. Is robotic hair transplant an incision hair transplant?
ARTAS assists with FUE, that is, the non-incision hair transplant process in which follicular units are harvested with a small punch. It differs from FUT, in which a strip of scalp tissue is excised.
Q. In the study, which was better, the robot or the human?
In the study of 13 patients, the yield rate of human FUE was numerically higher, and the discard rate of ARTAS was significantly higher. The transection rate was slightly lower with ARTAS, but the difference was not significant. Because the sample was small, it is difficult to determine which is superior.
Q. Then should robotic hair transplant be avoided?
There is no basis for such a conclusion either. Patient characteristics, the surgeon’s experience, equipment operation skills, and quality management throughout the entire surgical process are important. During your consultation, rather than a particular device’s promotional wording, check together the reasons it is suitable for you and the limitations that can be expected.
Considering which hair transplant method to choose?
Even within the same non-incision hair transplant, the plan varies depending on the condition of the donor area, the thickness and direction of the hair, the number of hairs required, and the degree of hair loss progression. We recommend deciding on the method suited to you through sufficient examination and consultation.
※ This article is intended to provide general medical information and does not replace individual diagnosis or treatment. Treatment methods and results may vary depending on individual conditions and surgical circumstances.
If you are wondering which hair transplant method suits you
Rather than whether a robot is used, the condition of the donor area, the extent of hair loss, the number of hairs required, and the possibility of future hair loss progression should be considered together. Have your current condition checked and receive a consultation on a suitable surgical direction.
Phone consultation 02-544-8659 · Mon–Fri 09:30–18:30 · Saturday 09:30–16:30 · Closed Sundays and public holidays
References
- Zhu Y, et al. A Comparative Study on the Application of Robotic Hair Restoration Technology Versus Traditional Follicular Unit Excision in Male Androgenetic Alopecia. J Cosmet Dermatol. 2024. View the original paper
- U.S. Food and Drug Administration. ARTAS System, K103428, 510(k) Summary. View FDA document
- U.S. Food and Drug Administration. ARTAS System, K173358, 510(k) Summary. View FDA document