Gua sha is a technique of using a tool to scrape the skin to relieve pain and tension. It results in light bruising underneath the skin known as petechiae or sha.
It is not uncommon for any of us to have Sha in our body sometimes. You may find some evidence of sha after you have scratched your skin. It is often an indication of blocked energy or blood stasis in the body.
Although Gua Sha is a part of traditional Chinese medicine, it is not often used in clinical practice. The reason is that the procedure of Gua sha can be painful and possibly intolerable for some people.