{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T11:10:40Z","timestamp":1788952240677,"version":"build-2803163510"},"reference-count":21,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T00:00:00Z","timestamp":1788912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>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.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>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\u201310 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.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      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\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001). The most preferred hair-bearing proportion corresponded to an HR of 0.505(IQR 0.455\u20130.584) and a WR of 0.373(IQR 0.356\u20130.387).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>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.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fsurg.2026.1946150","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T10:17:36Z","timestamp":1788949056000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Defining ideal anterior hairline contour and hair-bearing proportion via a morphometric analysis in Chinese women"],"prefix":"10.3389","volume":"13","author":[{"given":"Yiyi","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine","place":["Chengdu, Sichuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dadong","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine","place":["Chengdu, Sichuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lanzhi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Cosmetology, Hospital of Chengdu University of Traditional Chinese Medicine","place":["Chengdu, Sichuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingping","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Cosmetology, Hospital of Chengdu University of Traditional Chinese Medicine","place":["Chengdu, Sichuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fengrui","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Cosmetology, Hospital of Chengdu University of Traditional Chinese Medicine","place":["Chengdu, Sichuan, 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