Gua Sha is a traditional Chinese healing technique thatinvolves scraping the skin with a smooth-edged tool usually made of jade, quartz, or ceramic. The purpose of Gua Sha is to promote circulation, relieve muscle tension, and encourage lymphatic drainage.

When practicing Gua Sha I apply oil to the skin and then uses the tool to scrape along the surface of the body in long strokes. This can create slight redness, known as "sha," which indicates increased blood flow to the area.