The arthroscopic procedure consists in removing the cyst, closing its connection with the joint and suturing the damaged joint capsule tightly. In the case of concomitant intra-articular diseases (or causes of secondary occurrence of the cyst), repair activities are also performed. Arthroscopy allows for the least invasive removal of all known and described causes of popliteal cyst formation, which significantly improves the effects of treatment and reduces the number of recurrences. It is performed when conservative treatment does not bring satisfactory results.