Knee joint effusion caused by gout may be related to gout attack, which needs to be eliminated through daily life style adjustment, medication, and joint cavity pumping and injection of medication. 1. Lifestyle regulation: gout is closely related to purine metabolism disorder, so gout-induced knee joint effusion should firstly be changed from diet, strictly limit purine intake, avoid viscera, seafood and other high-purine foods, limit high-fructose, high-fat foods, quit smoking and drinking. 2. Drug treatment: gout caused by knee joint effusion, indicating that the knee joint inflammatory reaction is heavy, need to be actively anti-inflammatory treatment under the guidance of the doctor. Non-steroidal anti-inflammatory drugs such as ibuprofen and glucocorticoids such as prednisone can be used. 3. Joint cavity fluid extraction and injection of drugs: For a large amount of knee joint effusion, it is difficult to absorb the fluid by itself with conventional treatment, so the excessive fluid can be extracted through joint cavity puncture, or the joint cavity can be injected with anti-inflammatory treatment of glucocorticosteroids, such as betamethasone, to minimize the generation of effusion. If you have gout and knee joint effusion, you should go to the regular hospital in time, under the guidance of the doctor, combined with their own conditions, reasonable treatment.