Gua Sha is a therapy guided by the meridian theory of traditional Chinese medicine. It uses specific scraping tools, such as a smooth-edged spoon, or a scraping board made of ox horn bone, Bian stone, etc. After adding lubricating media such as scraping oil or moisturizer to the skin, it is repeatedly scraped and rubbed on the skin with appropriate force and technique to cause local changes such as small red spots or dark red bleeding to appear on the skin.

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"Sha" is caused by scraping, which causes dilation of subcutaneous capillaries, subcutaneous congestion or slight rupture and bleeding, resulting in flushing of the skin or the appearance of small red spots or purple-black areas. Traditional Chinese medicine believes that these phenomena are manifestations of pathogenic factors such as heat toxins and blood stasis in the body.

A fascial knife is a tool to relieve muscle tension. When many customers hear the keyword "knife", they think it is sharp and feel scared as if they are accidentally scratched and splattered with blood. In fact, the fascia knife is medical grade 316 stainless steel material, the edge is round and smooth does not cut the hand, heavy feel, to hold is very comfortable, safe and stable. It is not as dangerous as a knife.

If you have used a fascia knife to relax, you may have felt slight discomfort, but this is a normal reaction of the body, stemming from the release of the myofascia. The relaxation of the myofascia is very beneficial for promoting blood circulation and relieving muscle tightness. In the use of a fascial knife, the moderate pain is actually a positive response of the body to the effect of conditioning relaxation, rather than obvious discomfort.

In the busy modern life, fascia relaxation is a comprehensive way of physical and mental conditioning, suitable for all kinds of people: 1. Office sedentary people: relieve muscle discomfort caused by long-term sitting and improve the pressure caused by sitting posture. 2. Long-term standing: service workers who need to stand for a long time 3. Sports enthusiasts: athletes who exercise regularly, improve the recovery speed after exercise, help prevent and reduce muscle fatigue caused by exercise. 4. People with stressful life: release life pressure and promote physical and mental balance. These groups may suffer from muscle stiffness due to age or long-term fixed action. Through the use of fascia knife, not only can the muscle condition be improved, but also the discomfort can be relieved and the body's flexibility can be improved.

"Sha" is a manifestation of pathogenic factors coming out of the body, but not everyone will get "Sha" when scraping, and the harder and more painful it is, the better. Some people will get Sha after just a few light scrapes, while some people will not get Sha even if they scrape vigorously, especially those with weak Qi and blood. Therefore, scraping does not necessarily require "Sha" and pain. Sometimes gentle techniques can also achieve the therapeutic effect. On the contrary, scraping too hard and painfully will damage the skin and muscles.

The following situations are not suitable for Gua Sha: • Pregnant women • People with bleeding disorders or those taking anticoagulants • Patients with severe diabetes, cardiovascular and cerebrovascular diseases, cancer, liver and kidney diseases • People with wounds or ulcers on the skin • People with skin allergies, such as urticaria • People with physical weakness, anemia or excessive fatigue • When hungry or overfed • When overly nervous or excited