The popliteal fossa is located behind the knee joint. Popliteal cysts are mainly due to degenerative changes in the knee joint, which leads to the secretion of a large amount of joint fluid in the joint cavity. The pressure in the joint cavity increases due to the accumulation of joint fluid, which is then pushed out towards the back, forming a kind of cyst in the popliteal fossa. Surgical treatment is required and the exact cost of the surgery will depend on the type of surgery chosen. If traditional surgery is chosen to remove the popliteal cyst, the cost in this case, may be around$6,000. If arthroscopic, popliteal cyst removal is chosen, the cost in this case, may be around$10,000, including the patient’s pre-operative, post-operative and intra-operative costs. Patients are advised to make sure that the surgery is performed in a timely manner, but after popliteal cyst surgery, there may be a possibility of recurrence, so it is important to have regular follow-ups after surgery.