Gua sha is a traditional East Asian therapy in which a smooth-edged tool is pressed and scraped along the skin, a practice rooted in Chinese medicine and used for generations to ease muscle tension. In recent years it has become a staple of wellness content online, where short facial and body scraping routines are shared as self-care, beauty, and recovery videos. The sound itself has no single famous clip behind it, which is why it works as a generic treatment cue, instantly signalling a scraping session to viewers who already recognise the technique from social media.