Based on the blood-water theory that “invigorating blood can promote diuresis, and diuresis is beneficial to invigorate blood”, the article mainly discusses and summarizes the clinical application rules and efficacy of “invigorating blood and diuresis” in the initial swelling and pain of fracture, deep vein thrombosis of lower limbs and osteoarthritis of knee joint and its application value in the treatment of The article discusses and summarizes the clinical application rules, efficacy, and application value of the “blood circulation and water circulation method” in the treatment of bone injury diseases. Jin Kui? Water Qi Chapter” cloud: “Shaoyang pulse is low, Shaoyin pulse is thin, men are not conducive to urination, women are unable to menstrual water, menstruation for blood, blood is not conducive to water, called the blood part”. Also cloud: “the water before the break, after the disease water, called blood, this disease is difficult to treat; first disease water, after the water break, called water, this disease is easy to treat, why? Go to the water, its meridian since the next”. It expresses Zhang Zhongjing’s understanding of edema disease and the interrelationship between fluid and blood, and enriches the doctrine of disease mechanism and treatment rules of the Nei Jing, especially the proposed blood-water concurrent treatment method, which shows that activating blood can promote water, and water benefits the idea of activating blood, which has a profound influence on later generations. In clinical practice, the author has used blood and water to treat a variety of orthopedic and traumatic diseases, and often achieved twice the effect with half the effort. Now, according to my clinical experience, combined with cases, talk about the application of blood and water method in the clinical evidence of orthopedic injury. 1, fracture initial swelling and pain Treatment of fractures in Chinese medicine according to the three stages of injury, the early stage is appropriate to “activate blood circulation, eliminate blood stasis, reduce swelling and pain”. The author believes that the early stage of fracture not only has local pain but also local swelling, especially for closed fractures in some parts, such as forearm, tibiofibular double fracture and Pilon fracture, swelling is the main conflict in the early stage of fracture. Because swelling can cause serious complications, such as osteofascial compartment syndrome. Therefore, the treatment should be based on activating blood circulation and promoting water circulation to reduce swelling, i.e., adding appropriate amount of water-releasing and damp-permeating drugs while activating blood circulation and resolving blood stasis can not only enhance the effect of activating blood circulation and resolving blood stasis, but also accelerate the decreasing of swelling and receive the effect that is difficult to be achieved by activating blood circulation and promoting water circulation alone. According to traditional Chinese medicine, “if a limb is injured outside, the blood and qi are injured inside”. Although the tendons and bones are damaged, but the human body is an organic whole, injury is bound to affect the physiological functions of the internal organs, so that the qi and blood do not run smoothly, and the fluids are not properly distributed. Blood stasis is tissue congestion, bruising, tingling; water blockage is tissue exudation, swelling, pressure of the depression, and even tension blisters. Blood stasis and water blockage are both pathological products and important pathogenic factors, which cause each other’s diseases and are jointly affected. As Tang Rongchuan said, “Blood disease is not separate from water, and water disease is not separate from blood”, and “blood accumulation for a long time can also turn into water”. 2. Deep vein thrombosis in the lower limbs after total knee replacement Knee replacement patients are mostly elderly people with underlying diseases such as hypertension, coronary heart disease and diabetes. Patients’ blood is mostly in hypercoagulable state; the strain during the operation will inevitably damage the arteriovenous vessel wall, causing damage to the endothelial cells of the vessel wall and exposing the collagen fibers; postoperative bed rest and braking of the affected limbs slow down the blood flow. Therefore, the incidence of deep vein thrombosis in the lower limbs after surgery is greatly increased. According to Chinese medicine, “qi is the marshal of blood and blood is the mother of qi”. In elderly patients, qi is weak and blood is weak, plus surgery consumes qi and hurts blood. Since qi, blood and fluid are interdependent, mutually generated and mutually restricted, qi deficiency can easily lead to blood stasis, and stasis can injure qi for a long time. As stated in “Reading Medical Essays”: “Qi deficiency is not enough to push blood, then blood will have stasis”. The blood stasis does not dissolve for a long time, and does not work for a long time, remaining in the veins, eventually forming a tangible pathological product of thrombus. The thrombus obstructs the arteries, and the water and fluid seep out of the arteries, which further compresses the arteries and aggravates the stasis of blood, resulting in the stasis of water and fluid being intertwined in the local area, and the collapse of the meridians, qi and blood, resulting in swelling and pain. Ming? Wang Kentang pointed out: “stasis is fluid seepage, then into water. The clinical evidence shows that the affected limb is swollen, with no fingers, painful and limited movement, and may be accompanied by an increase in local skin temperature. This stasis of water is slow and gradual, since it is difficult to go quickly, the treatment is difficult to suddenly eliminate, it is advisable to slow figure of. “The lung is the source of water, and it is used to regulate the water channels towards all the veins. The blood clot is a tangible substance that stays in the veins and blocks the meridians, so the author added centipede to promote blood circulation and water circulation. The medical “Zhongzhong Ginseng Xilu” cloud: “Centipede, the most rapid power to move, internal and internal organs, external and meridians, where the Qi and blood cohesion can be opened. 3, osteoarthritis of the knee joint with effusion Osteoarthritis is a common disease in the elderly, the knee joint is more commonly involved. This disease is due to degeneration of joint cartilage caused by joint pain, swelling, deformity, dysfunction and other major manifestations of a class of joint disease. It is one of the diseases that seriously affects the quality of life of elderly patients because of its long duration and pain. Most patients have knee joint effusion, swelling and pain, and a positive clinical examination floating patella test. Western medicine mostly uses joint cavity puncture to extract the fluid and apply pressure bandage, which is effective, but it is easy to recur and is invasive, which may cause knee infection. In Chinese medicine, osteoarthritis of the knee with joint effusion is treated according to the holistic concept and evidence-based treatment, which has achieved better results. However, the use of spleen-heat-clearing and dampness-reducing agents, such as the genus Si Miao, has had little effect, why? The blood is related to the water,” said the “blood evidence” cloud: “where the regulation of blood, must first treat water; treatment of water is to treat blood, treatment of blood is to treat water.” This shows that invigorating the Blood promotes the promotion of water, and promoting water is beneficial to invigorating the Blood. The method of activating the Blood to promote water has been recorded as early as in the Nei Jing, such as in the Ling Shu? In the chapter of “Water distension”, there is the method of “piercing the blood channels” to treat ascites. Therefore, the treatment of this disease should be to activate the blood to remove blood stasis, promote water retention and reduce swelling. For those who are on the cold side, add warming and dispersing products, such as Hosin; for those who are on the hot side, add heat-clearing and dampness-reducing drugs, such as Atractylodes macrocephala and Phellodendron.