Reconstruction of small to medium lower lip defects commonly includes mucosal advancement and wedge excision with primary closure, resulting in aesthetic complications such as lip flattening, shortening, and loss of the vermilion roll.

The myomucosal lip island flap offers an alternative that preserves lower lip appearance and function.

We describe the lateral myomucosal lip island flap and its indications for the reconstruction of small to medium lower lip defects.

A retrospective chart analysis of patients from 2014 to 2019 was done.

Participants include all consecutive patients of the senior author who had the myomucosal lip island flap employed in the lower lip from 2014 when the senior author began employing this technique, including 20 patients.

Patient demographics, surgical indications, surgical defect bridging distances, flap advancing distances, functional complications, and aesthetic outcomes were reported. IRB approval was obtained from St. Joseph Health Center for Clinical Research and surgeries were performed at a private tertiary referral center—Skin Cancer and Reconstructive Surgery Center—by the senior author in a multispecialty practice.