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Accuracy of popular online symptom checkers for dermatological diagnoses

Online symptom checkers (OSCs) use proprietary computer algorithms and patient self-reported symptoms to generate a differential diagnosis and provide medical recommendations. Despite their popularity amongst patients as free and easily accessible resources,1 a previous non-dermatologic study demonstrated only 34% accuracy for the primary diagnosis.3 There is a lack of research, however, assessing their validity in dermatology in spite of their increasing use for cutaneous complaints.