Causes of Pain

Many men and women experience joint pain due to injury, disease and normal wear and tear. And while you can’t always prevent the cause, you can do something about the pain. A person with joint pain has discomfort in a joint. The most common cause of pain in a single joint is an injury, such as a sprain. Additional causes for pain in one joint include bursitis, tendinitis, and septic arthritis. Common causes of pain in multiple joints include osteoarthritis, rheumatoid arthritis, gout, or pseudogout.

The treatment of joint pain depends on the underlying cause. Treatment for joint pain due to injury includes rest, elevation, non-steroidal anti-inflammatory medications, cold compresses, and surgery. Additional treatment for joint pain caused by inflammation or infection includes warm compresses, weight reduction, and antibiotics. Treatment for joint pain caused by arthritis includes physical therapy, oral corticosteroids, drugs that suppress the immune system, and joint replacement surgery.


Common Causes of Knee Pain

Patellofemoral Pain Syndrome - Patellofemoral pain syndrome, also known as runner’s knee, is a common cause of knee pain among runners. It can also strike those engaging in activities requiring repetitive knee bending such as biking, climbing, and jumping. Symptoms of this syndrome may include pain behind or around the kneecap (patella), pain while bending the knee, pain that worsens when walking downstairs or downhill, knee swelling, or popping or grinding sensations in the knee.

Osteoarthritis - Knee osteoarthritis is a common medical condition. The United States Centers for Disease Control and Prevention (CDC) estimates the disorder affects more than 33-percent of individuals older than 65-years. It is a degenerative joint disease characterized by the deterioration of cartilage, overgrowth of bone at the margins (osteophytes), and increased bone density (subchondral sclerosis).

Chondromalacia Patella - Chondromalacia patella refers to the softening and breakdown of the cartilage on the underside of the kneecap or patella. It is one of the common causes of knee pain, especially in women. Chondromalacia patella is caused by misalignment, or improper tracking, of the patella as it slides over the thighbone (femur). The most common symptom is a dull, aching pain in the front of the knee behind the kneecap, which can be exacerbated by prolonged sitting.

Bursitis - Bursitis of the knee refers to inflammation of a fluid filled sac (bursa) located near the knee joint. Each knee joint has a total of 11-bursae. Causes of knee bursitis include frequent kneeling, a direct blow to the knee, bacterial infection of a bursa, and complications from other conditions such as osteoarthritis, rheumatoid arthritis, or gout in the knee.

Popliteal Cyst - A popliteal cyst, or Baker’s cyst, represents an accumulation of fluid in the popliteal bursa, which is a small fluid-filled sac behind the knee. Popliteal cysts are usually caused by underlying medical conditions such as gout (increased levels of uric acid in the blood), hemophilia, lupus, osteoarthritis, psoriasis, rheumatoid arthritis, and injury.

Prepatellar Bursitis - Prepatellar bursitis refers to inflammation of the bursa (small fluid-filled sac) in front of the kneecap (patella). It is also known as housemaid’s knee. Prepatellar bursitis may be caused by sudden injury (fall or direct blow to knee), recurrent minor injury to the knee (repetitive kneeling), infection, gout, and rheumatoid arthritis.

Patellar Tendonitis - Patellar tendonitis is an overuse injury affecting the patellar tendon, which sits just below the patella (kneecap) and attaches the kneecap to the shinbone. It is also referred to as jumper’s knee. Activities requiring frequent jumping and landing place excessive stress on the patellar tendon.

Osgood-Schlatter Disease - Osgood-Schlatter disease is a knee ailment most commonly diagnosed in children and adolescents. It most commonly affects children participating in sports such as soccer, basketball, volleyball, and ballet since they involve running, jumping, and swift changes in direction.