Causes of Knee Pain
Unfortunately, there are other body problems that can cause knee pain to occur in people. Hip and back pain may cause abnormal gait which subsequently causes knee pain. Diseases such as arthritis, rheumatoid arthritis, gout, osteoarthritis, and lupus may cause knee pain. Infection of the joint, the surrounding skin (cellulitis), the bones (osteomyelitis), or bursa sac (septic bursitis) can cause knee pain. A Baker's cyst (popliteal cyst) can cause knee pain and any compromise of the nerves or vasculature can, too. Less frequent causes of knee pain can be Osgood-Schlatter disease (pain in the kneecap or tibia in children, mainly boys, ages 10 to 15) and osteochondritis dissecans (when blood flow to bone or cartilage is cut off and tissue dies).