The ancient understanding of pathology can be considered general and generalized. For example, “Ling Shu mouth question twenty-eight” said “the beginning of all diseases are born in the wind, rain, cold and summer, yin and Yang, happy and angry, food and drink, a big shock and fear, then the blood is separated, yin and Yang broken, meridians and collaterals syncope, the pulse path does not work”, a large sentence is a variety of causes, regardless of external cold, wind, heat, wet; or internal injury to the seven emotions The Chinese medicine believes that the qi pushes the blood line, the blood carries the qi, the qi and blood are separated, naturally the qi does not push the blood line, the blood remains as stasis, the yin and yang is not harmonious, the meridians are not smooth, the veins are blocked. This shallow understanding, expressed in the body surface may be the “blood complex” “small as a needle, large as a tendon” and so on. With this pathology, what should be done? Suwen, “On the regulation of the meridian”: “What is the best way to stab the blood? Depending on the blood, prick out the blood, so that no bad blood can enter the meridian, the meridian into its disease.” According to the condition of the blood stasis, the blood must be released, otherwise the bad blood will enter the large meridians and cause serious problems. It is also said in “The Twelve Principles of the Ninth Needle” that “those who have stagnant blood should be removed to get rid of the bad blood”, that is to say, those who have stagnant blood should be removed. Su Wen? It is also said in “The Twentieth Book of the Three Departments and Nine Hieroglyphs” that “the blood must be removed before it can be adjusted”, and that “if the upper part is actual and the lower part is deficient, cut and follow it, and then seek its knotted veins and prick out its blood to see it through”, which means that when there is stagnation, the stagnant blood must be released first and then be adjusted by micro-needle (milli-needle). This means that in case of stagnation, the blood must be released first, and then adjusted with microneedle (milli-needle) and tonics; in case of upper solidity and lower deficiency, the changes in blood vessels must also be observed, and the blood must be pricked to make the meridians clear. As the saying goes, the first thing to do is to get rid of the stasis and help the righteousness, and getting rid of the evil itself is also a kind of help. What will happen if the blood is not pricked and released? The “Ling Shu” meridians: prick all the meridians, must prick its knot on the very blood. Although there is no knot, take it urgently, in order to diarrhea its evil and bleeding, stay the hair for paralysis”, that is to say, found the problem, there is blood complex, if not early prick the complex to release the blood, to time, sooner or later will be out of pain paralysis and other conditions. It seems that it is better to pierce and release blood early! Modern medicine believes that various injuries such as changes in temperature, emotional changes, infection with viruses, bacteria and other causes can lead to derangement of nerve regulation, causing changes in vasomotion, damage to the walls of blood vessels, changes in the release of local vasoactive substances, resulting in local blood circulation disorders, which may cause pain, numbness, swelling and other symptoms, can cause skin conditions such as neurodermatitis, can cause muscle atrophy, etc. In most cases, blood prick therapy is a good way to improve blood circulation disorders in the most direct and fast way.