Changes of Facial Features After Bariatric Surgery: a Systematic Review

This study aims to provide an overview of the facial features and structure after bariatric surgery in the existing literature. A systematic literature search was performed in electronic databases until 15th February 2022. Four cohort studies including 129 patients from 3 countries were included between time period 2011 and 2020. Overall, bariatric surgery would promote massive weight loss associated with positive effects on facial aging. Analysis revealed a proportional relationship between body mass index (BMI) and faster facial aging and more attractive. Undergoing bariatric surgery would result in facial skin sagging and a favorable effect on the upper airway. Bariatric surgery was found to have a significant impact on changes in facial features but the current evidence remains inconclusive and further studies are required to illustrate facial changes post-bariatric surgery.