Whether it is better to draw fluid from the knee effusion or not needs to be decided according to the condition, if it is caused by trauma it can be extracted, if synovitis it is not recommended to draw fluid repeatedly.
For knee joint effusion caused by knee trauma, in most cases, there is blood accumulation in the knee joint, if the knee joint effusion can not be completely absorbed in a short period of time, can be puncture extraction, generally a better prognosis.
For knee joint effusion caused by synovitis, it will lead to repeated formation and attack of knee joint effusion. Repeated fluid extraction can only improve the symptoms and may induce aggravation of the condition, so repeated fluid extraction is not recommended.
There are more causes of knee effusion, such as trauma, knee synovitis and degenerative changes of the knee joint. Therefore, when knee pain or swelling occurs, it is necessary to consult a doctor in time and receive regular treatment under the doctor’s guidance.