What is it? : Soft, usually painless mass that develops behind the knee. It is filled with liquid.

Causes : Baker’s cyst is seen in developing children after straining joints. It may be developed in adults in connection with inner knee diseases such as rheumatoid arthritis, gout, rupture of the meniscus.

Clinical: Swelling behind the knee and sometimes on the leg, knee pain and knee stiffness are among the symptoms that can be seen.

Physical examination is important in diagnosis. It is best seen with ultrasound. MRI can be performed if surgical removal is considered.

Treatment : Baker’s cyst in childhood is followed by anti-inflammatory drug and elastic bandage application. If there is no improvement within 3 months and if pain is present, it is surgically removed. Baker’s cyst in the adult age is primarily treated for an in-joint knee disease or systemic disease. With the treatment of these diseases, regression is observed in the cyst. Emptying the cyst with an injector is not recommended as it is highly likely to recur. It is surgically removed in rare cases, when necessary.