INTRODUCTION: Post-bariatric surgery is one of the fastest-growing subspecialties in plastic surgery. The increase in the number of surgical procedures has not been followed by an equivalent categorization of patients. Surgical innovations and technical refinements are widespread, while clear classification and objectification of surgical indications are lacking. METHODS: A retrospective monocentric study was carried out. We included 135 patients operated in our department of plastic surgery between January 1, 2015, and December 31, 2019. Patients were adults with a history of bariatric surgery. We analyzed two major and two minor criteria before the reconstructive procedure was performed. We divided patients into three clusters (A, B and C) according to the number and nature of major criteria met. We then compared the incidence of postoperative complications and the percentage of body weight regained at 1 year after surgery between the groups. We also tested the impact of minor criteria in each cluster. RESULTS: Our sample had a mean age of 48.5 years, a mean BMI of 27.68 kg/m CONCLUSION: The classification proposed based on our criteria may represent a first step toward classifying post-bariatric patients and reinforcing the surgical indication in these patients. It also enables us to identify the patients who are most at risk of complications. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .