Often there are no symptoms for Baker's cyst, and the cyst can remain unnoticed. However, when symptoms do occur they may include a pronounced soft lump or swelling behind the knee, most obvious when standing.
Pain can be persistent or aching with a sensation of pressure at the back of the knee, and an inability to fully flex the knee. This accompanies restricted knee joint mobility, and a sensation of tightness at the back of the knee when the leg is straightened. Symptoms often worsen after activity or long periods of standing.
Baker's cyst may result from extremely shortened rear leg muscles caused by frequent sitting. Compression of connective tissue, responsible for occurring Pain, represents a direct result.
Often this Pain may show improvement following the first session by applying Osteopressure. This suggests that the cyst, though still present, may not be causally responsible for Pain. Baker's cysts are often mistakenly diagnosed because patients report Pain in the hollow of the knee.