RT Journal Article SR Electronic T1 Morphological Classification of Beard Hair in Men JF International Society of Hair Restoration Surgery FD Publication of the International Society of Hair Restoration Surgery SP 157 OP 168 DO 10.33589/34.5.157 VO 34 IS 5 A1 Souza, Solon Eduardo Gouveia A1 Speranzini, Mauro YR 2024 UL http://www.ISHRS-HTForum.org/content/34/5/157.abstract AB The presence of beards in men has intrigued humans throughout history, drawing interest from various fields. This article proposes a universal morphological classification for the human beard, aiding comparative studies and medical communication.Evaluation of hair and beard transplant patients was conducted on 250 males at the Speranzini Clinic over three years. Types of beard presentation were categorized based on morphological features. The classification was progressive from type I to VI. In our sample, the most frequent beard pattern was type V (42.4%, n = 106), with a mean age of 41 (range 21-66 years old).The proposed classification offers a standardized approach for beard evaluation across diverse populations. Further research is warranted to validate the findings in different groups. Despite potential ambiguities, the classification was efficiently applied in the studied population.