Traumatic synovitis of the knee is an aseptic inflammation of the synovial membrane of the knee caused by acute trauma or chronic strain, and is a common condition following knee injury with a prevalence of 2 – 3%. It is thought to be caused by excessive weight bearing, passive flexion and extension of the knee joint, or by impact from external forces. The clinical manifestations are localized pain, swelling, and limitation of flexion and extension activities. The clinical manifestations are local pain, swelling, and limitation of flexion and extension. Traditional Chinese medicine is considered to belong to the category of paralysis, tendon injury and bone impotence. Due to local trauma, Qi and blood disorder, blood stasis and Qi stagnation, paralysis of the veins and channels, loss of fluid distribution, dampness and heat retention in the local area, resulting in redness, swelling, heat and pain in the knee joint, limited function, and blood stasis over time, dampness and heat into phlegm, which aggravates the condition and makes it difficult to heal. Therefore, the treatment should be based on the evidence, promoting blood circulation and eliminating blood stasis, as well as dispelling wind, dampness and cold. External application of Chinese herbal medicine can be applied directly to the affected knee, so that the medicine can take effect for a longer period of time and promote the return and absorption of inter-tissue fluid and the decomposition of joint adhesions. 3.Chinese herbal fumigation The combined action of medicine and heat on the diseased area is conducive to improving local blood circulation, reducing exudation, decreasing inflammatory response, and accelerating the absorption and excretion of pathological products. 4. Chinese medicine joint cavity infusion The use of Chinese medicine infusion and flushing method, so that the drug directly to the affected area, one can flush out the accumulated blood in the joint cavity, to avoid the accumulation of stasis and rot; two can eliminate sterile inflammation, reduce synovial fluid exudation, eliminate swelling and pain; three can prevent the harmful effects of acidic metabolites, to avoid progressive organic joint damage and synovial adhesions, so that the function of the knee joint can be restored. 5, acupuncture comprehensive therapy Modern medicine believes that acupuncture has the effect of unblocking the meridians and adjusting the internal environment of the body. The use of acupuncture and moxibustion integrated treatment, is conducive to improving local microcirculation, promote the blood supply and metabolism of the lesion, regulate intra-articular pressure, and promote the absorption of inflammatory fluid and tissue repair. Western medicine treatment 1, Western medicine for internal and external use Traumatic knee synovitis pathology is manifested by congestion, edema, synovial thickening. Non-steroidal anti-inflammatory drugs have good anti-inflammatory and analgesic effects, and are widely used in clinical practice. Clinical treatment is usually internal fentanyl, anti-inflammatory pain, fotarine, etc. and external fotarine symptomatic treatment. Most of the systemic drugs are used to reduce or relieve pain, so as to relax the tense or spastic muscles and reduce the muscle pull on the local lesion, which is conducive to the repair of the local injury lesion. 2.Joint cavity puncture and injection therapy The central link leading to traumatic synovitis is that the inflammatory factors cause local vascular and cellular reactions, joint cavity puncture, drug infusion and irrigation, so that the accumulated blood and stagnation is flushed out, avoiding the accumulation of stasis and decay, eliminating sterile inflammation, preventing acidic metabolic harmful products, avoiding further joint degeneration, and restoring joint function. 3, surgical treatment Western medicine surgical treatment generally includes synovectomy and arthroscopic treatment. The survey shows that among the synovectomy procedures for chronic traumatic synovitis of the knee, surgical synovectomy is the most common, followed by radiosynovectomy and finally chemical synovectomy. Traditional incisional exploration, synovial shaving or resection is highly invasive and prone to complications. Minimally invasive arthroscopic techniques provide an effective way to visualize the synovial tissue in the joint cavity. Physical therapy stimulates the release of histamine from the skin and related tissues through physical therapy of the affected area, which directly or indirectly dilates blood vessels and promotes blood circulation, causing local inflammatory exudation to be absorbed and controlling the inflammatory response, thus achieving pain relief and cure. Fourth, functional exercise synovitis treatment process, the knee joint to stop moving, or even braking, in order to reduce fluid secretion, but this method is likely to cause loss of joint function, muscle atrophy, inducing other pathologies of the joint. Functional exercise as an adjunctive therapy is an important part of clinical practice. With the improvement of science and technology and the development of molecular biology and genetics, it is necessary to apply modern science and technology and methods to study the etiology and pathogenesis of traumatic synovitis, and to explore the effective methods or drugs for the treatment of the disease to solve the actual clinical problems. According to the literature, bone marrow MSCs have made significant progress in bone repair and bone formation, cartilage repair, tendon and ligament tissue repair, and repair of composite tissue structures.