Hi Thanks for your query As per discussion you shold have becker`s cyst in your knee joint Baker’s cyst is a swelling on the back of the knee caused by accumulation of fluid inside sacs called bursae between the two heads of the gastrocnemius (calf muscle). The symptoms are mild unless the cyst bursts or extends down into the calf muscles. Common causes of Baker’s cyst include arthritis, infection, torn knee cartilage and other knee injuries. Baker’s cyst is also known as a popliteal cyst. Baker’s cysts don’t always require active treatment and sometimes will only require observation over time by the treating doctor Treatment for the underlying cause, Temporarily avoiding activities that aggravate the knee joint Physiotherapy involving ice packs Cortisone injections Inserting a needle into the cyst and draining off the fluid In severe cases, surgery to remove the cyst entirely Take care