Pili multigemini is a rare disorder where more than one hair exists in a single hair follicle. Papillar tips that divide into several tips will produce several hair shafts, so that characteristically do not fuse again. This disorder is relatively frequent on the beard of adult men and on the scalp of children. However, extensive areas of pili multigemini in other locations have rarely been described.
Keywords: Hair shaft dysplasia; pili multigemini; trichoscopy.