Gua sha looks good on Instagram
The practice does increase blood flow to parts of the body, but experts say this isn’t necessarily a health benefit: ‘A punch to the nose also increases blood flow’
TL;DR
- Gua sha is an ancient Chinese practice involving scraping the skin to create mild bruises (petechiae).
- Proponents claim petechiae indicate 'toxin' removal, leading to healing and improved bodily functions.
- Experts state the practice increases blood flow like a massage but provides no scientifically proven health benefits beyond that.
- There is no evidence linking petechiae to 'toxins'; they are a natural response to pressure.
- Research on gua sha is limited, with existing studies often of low methodological quality and difficult to conduct without bias due to the impossibility of effective blinding.
- The practice is visually appealing for social media content, contributing to its renewed popularity.
- Realistically, gua sha offers benefits similar to therapeutic massage but may involve unnecessary pain and lacks specific health advantages.