  This review reports the user experience of symptom checkers, aiming to
characterize users studied in the existing literature, identify the aspects of
user experience of symptom checkers that have been studied, and offer design
suggestions. Our literature search resulted in 31 publications. We found that
(1) most symptom checker users are relatively young; (2) eight relevant aspects
of user experience have been explored, including motivation, trust,
acceptability, satisfaction, accuracy, usability, safety or security, and
functionality; (3) future symptom checkers should improve their accuracy,
safety, and usability.
