Cognitive Biases in Surgical Decision-Making

Cognitive biases are defined as systematic deviations from rational thinking. In high-stress surgical conditions,  even highly trained surgeons are prone to falling to cognitive biases and making irrational choices. This can impact crucial decisions made when diagnosing patients and even while conducting surgery. Research indicates that certain biases such as anchoring, overconfidence, and confirmation bias can all play a direct role in surgical outcomes. Although these mental strategies can be helpful by enhancing efficiency, they can be very dangerous, leading to serious and even fatal errors. Understanding how cognitive biases work is central in formulating strategies for surgeons to mitigate their harmful impacts.

One of the most notable and influential cognitive biases faced by experienced surgeons is anchoring bias, which occurs when one relies too heavily on a single piece of information to make reasoned judgments. An example of this is a surgeon formulating a preliminary diagnosis to a patient without full analysis or judgment. When this occurs, the surgeon might insist on their initial diagnosis, even as new contradictory evidence emerges. This raises a huge risk of surgeons overlooking other causes of the patient’s condition. This harmful pattern is further reinforced by confirmation bias, causing medical officials to favor and seek evidence that aligns with their existing beliefs while completely disregarding any evidence that contradicts their beliefs. Certain studies have indicated that these biases can delay accurate diagnoses and appropriate intervention. In fast-paced surgical settings, these biases become even more extreme and harmful, highlighting the need for more research on the mechanisms of these cognitive biases and structured decision-making tools for surgeons to avoid making irrational choices.

Another common cognitive bias that is often overlooked is the overconfidence bias. In a surgical context, this is when a surgeon may overestimate the accuracy of their knowledge or decisions. Surgeons are especially prone to this bias in high-pressure environments. Overconfidence has been shown to reduce openness to feedback and limit collaboration in decision-making. To address these concerns, it is crucial that hospitals and clinics implement strategies to counteract these risks.

In conclusion, cognitive biases, although unavoidable, can be managed using certain strategies. Although they can enhance efficiency in fast-paced surgical environments, these biases often compromise surgical judgment and accuracy, which is very dangerous, as this can undermine patient safety. By recognizing these patterns and implementing effective strategies, medical professionals can reduce the impact of these biases and help foster more reliable patient-centered care.

Written by Hawi Teju at Incisionary

References

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Saposnik, G., Redelmeier, D., Ruff, C. C., & Tobler, P. N. (2016). Cognitive biases associated with medical decisions: A systematic review. BMC Medical Informatics and Decision Making, 16(1). https://doi.org/10.1186/s12911-016-0377-1

Shlobin, N. A., Beestrum, M., Soutschek, A., & Korn, C. (2025). Cognitive Biases in Physician Decision-Making: A Systematic Review. https://doi.org/10.31234/osf.io/7abxt_v1