Microform cleft lip is an unusual pathology (1% of patients with unilateral cleft lip) characterized by: notched mucosal margin in the Cupid bow, cleft in red lip, abnormality in the orbicularis oris and minor nasal deformity. We present a retrospective study done in Fundación Gantz (Santiago de Chile) during last 10 years, based on 51 cases operated on with a personal technique used since 2005, that solves nasal and lip abnormalities with minimal incisions. We present technical details and illustrated cases an a review of the published literature about the theme.