Lateral section of the knee The primary symptom of<unk>  is swelling of the area around the kneecap. It generally does not produce a significant amount of pain unless pressure is applied directly. The area may be red (erythema), warm to the touch, or surrounded by cellulitis, particularly if infection is present, often accompanied by fever. Unlike arthritis, except in severe cases<unk>  generally does not affect the range of motion of the knee, though it may cause some discomfort in complete flexion of the joint. Flexion and extension of the knee may be accompanied by crepitus, the audible grating of bones, ligaments, or particles within the excess synovial fluid.
Prepatellar bursitis
Infrapatellar bursitis
Ischial bursitis
Pes anserine bursitis
Retrocalcaneal bursitis
Patellar tendinitis
Olecranon bursitis
Plantar calcaneal bursitis