Maladaptive eating behavior after bariatric surgery is an im-portant cause of postoperative weight regain. However, the depth and reliability of its related research has been greatly hindered partially by non-unification of its concept and inappro-priate words used to explain the concept.

To clarify the concept of maladaptive eating behavior after bariatric surgery.

In May 2022, database of CNKI, WanFang Data, SinoMed, PubMed, Web of Science and CINAHL were systematically searched for studies in Chinese or English mainly about maladaptive eating behavior after bariatric surgery from inception to May 10, 2022, involving related concepts, definition attributes, antecedents and consequences. The contents of included literature were analyzed using the Rodgers' process of concept analysis, involving the evolution, attributes, antecedents, consequences, related concepts, typical case, assumptions and enlightenment for further development.

Altogether, 36 studies were included, 33 of which in English, and the other three were in Chinese. The conceptual attributes of maladaptive eating behavior after bariatric surgery were composed of six aspects: uncontrolled eating, grazing, emotional eating, food craving, food addiction and compensatory behaviors. The antecedents include subjective factors (containing self-efficacy, dietary attitude, psychological status, work pressure and so on) , and objective factors (containing age, gender, education level, obesity history and others) . Eating disorders, mental illness, weight-loss outcome, nutritional status and quality of life compose the consequences.

The concept of maladaptive eating behavior after bariatric surgery is still non-unified. Its meanings in China should be discussed according to the national condition, and in-depth research on relevant theories, assessment tools, influencing factors and intervention should be conducted on this foundation, so as to maintain the effect of bariatric surgery and improve the quality of life in these patients.

减重代谢术后不良饮食行为是导致术后复胖的重要原因，但其概念尚未统一，且用词混乱，较大程度地限制了该领域的深入研究及研究结论的可靠程度。

界定减重代谢术后不良饮食行为的概念。

于2022年5月，系统检索中国知网、万方数据知识服务平台、中国生物医学文献数据库、PubMed、Web of Science、CINAHL数据库，获取以"减重代谢术后不良饮食行为"为主要研究内容且涉及相关概念、定义属性、先决条件、结局指标的文献，检索时限为建库至2022-05-10，语种限定为中、英文。根据纳入的文献，按照Rodgers演化概念分析的步骤，从概念演化、属性特征、先决条件、后果、相关概念、典型案例、为概念的进一步发展提出假设和启示7个方面对减重代谢术后不良饮食行为的相关内容进行分析与整合。

共纳入符合要求的文献36篇，包括英文文献33篇、中文文献3篇。Rodgers演化概念分析结果显示：减重代谢术后不良饮食行为包括失控性进食、放牧饮食、情绪性进食、食物渴求、食物成瘾、补偿行为6个属性特征；先决条件包括主观和客观因素，主观因素包括自我效能、饮食态度、心理状况、工作压力等，客观因素包括年龄、性别、文化程度、肥胖病史等；后果包括进食障碍和精神心理疾病、减重效果、营养状况、生活质量。

减重代谢术后不良饮食行为的概念尚未统一，未来还需结合我国国情深入剖析减重代谢术后不良饮食行为的内涵，在此基础上对相关理论、评估工具、影响因素和干预措施等内容进行深入研究，从而维持患者术后减重效果，提高患者生活质量。