The causes of blood stasis and paralysis: 1. Wind evil causes stasis: When the wind evil is not dissolved immediately, it can penetrate into the blood vessels or internal organs to cause stasis with the difference of the patient’s own constitution. In later times, the saying “treating wind first treats blood, and the wind will be extinguished when the blood moves. That is from this. 2.Cold condensation causes stasis: “Jin Women’s Miscellaneous Diseases” points out that “blood cold accumulates, the cell door is injured by cold, and the meridians are condensed and hardened.” When the blood is cold, or the cell door is attacked by cold, the blood vessels are condensed and blood transport is obstructed, and the meridians are condensed and obstructed, so that blood stasis accumulates. 3.Heat toxin causes stasis: “Ling Shu Jing Shu Shu? Canker sores” cloud: “Ying Qi stays in the blood vessels, then the blood weeps and does not work, does not work, then the Wei Qi from it and does not pass, congestion and can not travel, so the heat, more than a big heat, heat wins the meat rot, meat rot is called pus.” Heat toxins invade the blood vessels of the body, burning the fluid, making the blood concentrated and condensed into stagnant blood; heat toxins and stagnant blood congestion of the meridians do not resolve, can also be turned into pus and blood. 4. Dampness and heat cause stasis: Dampness and heat mostly originate from external sensation, diet, internal injury, etc. Dampness and heat can cause stasis over time, because dampness is sticky and stagnant and can easily block the veins; heat hurts Yin and moves blood, and can easily burn the veins. 5. Phlegm and water cause stasis: “Ling Shu Jing Xuan Shu? Canker sores” cloud: “Ying Qi, secrete its fluids, injected in the veins, transformed into blood”, pointed out the physiological relationship between fluids and blood. Phlegm, water and dampness are all pathological products of the primary disease, and they have become obstructive to the vasculature and affect the flow of Qi and blood, which can also lead to stasis. 6. The seven emotions cause stasis: depression or over-excitement of the seven emotions can cause stasis when the qi is out of balance and the qi and blood are in rebellion. For example, in “Ling Shu? If internal injury is caused by worry and anger, the qi will be reversed, the qi will be reversed and the six transfusions will be different, the warm qi will not work, the blood will be condensed and not dispersed, the fluids will be astringent and permeable, and the accumulation will not go away. This specifically describes the mechanism of stasis caused by sorrow and injury. 7. Qi deficiency causes stasis: “Renzai Zhi Zhi Fang” cloud: “qi line is blood line, qi stop is blood stop, qi slip is blood slip, qi cold is blood condensation, qi has a breath of inaccessibility, then blood” has a breath of inaccessibility. Qi has the function of pushing the blood to run, if Qi is weak, the blood will run slowly and even stagnate into stasis. 8.Blood deficiency causes stasis: In “Reading Medical Essays”, Zhou Xuehai proposed: “Yin deficiency of blood will be stagnant, and Yin deficiency of blood will be condensed”. Blood deficiency causes blood stasis because the blood vessels are not full and the blood travels astringently and slowly, so it is easy to stagnate and cause stasis. 9. Void labor causes stasis: Void labor is a deficiency of Qi and blood in the five viscera, Yin and Yang, Ying and Wei, and can cause stasis over time. Su Wen? Paralysis”, “the disease is long into the long, the line of Ying and Wei is astringent, the meridian is sparse, so it does not pass”, that is, long-term disease will be stasis. 10.Women’s disorders cause stasis: after menstruation, blood loss during childbirth, the hundred veins are empty, wind, cold and moisture and other external evil invade, the veins and channels stasis, resulting in paralysis. 11.Trauma causes stasis: trauma causes stasis as a common clinical disease, trauma can cause local skin and tendons trauma, blood away from its meridian tunnel does not follow the pulse channel, the side overflow outside and form stasis of blood. The proportion of blood stasis in RA: In recent years, many doctors have paid more and more attention to the role of blood stasis in the pathogenesis of RA. They have found in their clinical work that better results can be achieved by treating RA with blood stasis activation while dispersing wind and cold or clearing heat and dampness. They believe that blood stasis is a very important factor in the development of RA and may also be one of the initiating factors of RA. A large amount of literature has reported that blood stasis paralysis and obstruction evidence occupies a large proportion of the TCM symptoms of RA, and it can appear in all stages of RA. In the study of rheumatoid arthritis TCM syndromes, Liu Jian et al. found that among 100 RA patients, 84 (84%) had mixed deficiency and actual syndromes, 11 (11%) had actual syndromes, and 5 had deficiency syndromes, among which 96.7% had blood stasis syndromes in the first two syndromes; Wang’s analysis of the etiology and pathogenesis of 786 RA cases found that blood stasis syndromes were found in 258 cases, accounting for 32.8%; Wu’s analysis of the clinical signs, symptoms, and symptoms of 160 patients diagnosed with RA showed that the blood stasis syndromes were the main cause of RA. In the study of clinical signs, blood rheology and microcirculation of 160 patients diagnosed with RA, it was found that 78.1% of them had blood stasis; in the treatment of 78 patients with rheumatoid arthritis by Hirozo Takahashi in Japan, 42 cases were found to have blood stasis. These studies show that blood stasis can be both the initiating factor and the main pathogenic mechanism in the development of RA throughout the course of the disease.