BACKGROUND: Douyin APP is the short video APP with the largest number of users in China. OBJECTIVE: This study aimed to evaluate the quality and reliability of short videos about cosmetic surgery on Douyin. METHODS: In August 2022, we retrieved and screened 300 short videos related to cosmetic surgery from Douyin, extracted basic video information, encoded the contentand identified the video source. The quality and reliability of short video information were evaluated using the DISCERN instrument. RESULTS: A total of 168 short videos of cosmeti...