Rogue Hairs: A Mixed-Method Characterization of a Previously Unreported Entity

Abstract

Introduction: We define rogue hairs as unusually long hairs on the face outside of the typical hormone-driven hair-bearing areas. These represent a common and previously undocumented phenomenon. This mixed-method study describes the frequency and clinical features of rogue hairs using a case series, patient survey, and social media analysis. Methods: Clinical cases were identified by dermatologists, and social media platforms were searched for additional cases. Social media comments were reviewed using qualitative thematic analysis. Surveys were administered to patients at an academic dermatology clinic. Results: The case series revealed these hairs are seen in children and adults, men and women, and across races. Of the surveyed patients, 18% reported rogue hairs. Social media analysis highlighted common experiences of sudden appearance, frequent removal attempts, and minimal interaction with dermatologists. Conclusion: This mixed-method study defines rogue hairs on the face, underscoring their prevalence despite their benign nature. While the biological explanation for these hairs remains unknown, the study highlights the potential of social media as a tool for clinical inquiry and enhanced understanding of the patient experience. The study provides evidence-based information for individuals experiencing rogue hairs and prompts future research into the biologic mechanisms underlying this common phenomenon.