Gua sha Gua sha (刮痧; guāshā) is abrading the skin with parts of sleek jade, bone, animal tusks or horns or easy stones; until finally purple places then bruising address the area to which it is done. For more on the idea of how exterior Warmth penetrates, see our https://rowan503f6.pointblog.net/a-review-of-chinese-medicine-acupuncture-points-67866909