ArticleFrontiers in surgery2026
Defining ideal anterior hairline contour and hair-bearing proportion via a morphometric analysis in Chinese women.
Article in Frontiers in surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Objective: This study aimed to determine the ideal morphology of the anterior hairline contour and hair-bearing proportion in Chinese females, thereby improving preoperative planning protocols and enhancing clinical efficacy in both surgical hair transplantation and non-surgical camouflage interventions. Methods: Ninety participants completed a questionnaire-based study using digitally modified images of a female model. First, participants were randomly recruited to rate digitally altered images to investigate the most aesthetically preferred hairline contours. Five hairline contours (round, M-shaped, triangular, rectangular, and bell-shaped) were assessed across five dimensions: overall impression, naturalness, attractiveness, youthfulness, and agreeableness (on a 0-10 scale). Subsequently, respondents were asked to adjust the anterior hair-bearing proportion in the image until they reached their highest level of satisfaction. The height ratio (HR) and width ratio (WR) were calculated to quantify the hair bearing proportion. Results: Round, triangular, and M-shaped hairline contours were rated significantly higher than rectangular and bell-shaped contours in terms of overall appearance, naturalness, attractiveness, youthfulness, and agreeableness (all Conclusion: Participants demonstrated a clear preference for round anterior hairline contours, with triangular and M-shaped contours also considered aesthetically favorable. An HR of approximately 0.505 and a WR of 0.373 represent the optimal anterior hair-bearing proportions. These population-specific findings provide quantitative evidence to support individualized planning for hair transplantation and nonsurgical aesthetic interventions.
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