If there is a small amount of effusion in the ankle joint, most of them are due to synovitis or osteoarthritis, large osteoarthrosis, and secondary synovitis, and there is a small amount of effusion in the ankle joint cavity, the following treatment can be carried out: First, physical therapy, you can use microwave physical therapy or far infrared physical therapy to carry out physical therapy of the ankle joint, which can promote the absorption of the effusion. Secondly, oral medication can be taken to reduce the effusion by taking synovitis tablets. If there is pain, you can take oral pain medication, such as celecoxib and loxoprofen sodium tablets. If there is a small amount of joint effusion due to osteoarthritis or osteoarthrosis, you can take oral peptide tablets as well as Pancoast Seven tablets for treatment. If the effusion in the ankle joint is large and the effect of physical therapy and oral medication is not good, joint cavity puncture can also be performed, as well as intra-articular injection of sodium vitreous acid, which also has good effect.