Causes

Knee pain causes include:

• ACL injury (tearing of the anterior cruciate ligament in your knee)
• Avascular necrosis (death of bone tissue due to limited blood flow)
• Baker's cyst
• Broken leg
• Collateral ligament injury
• Dislocation
• Gout (arthritis related to excess uric acid)
• Iliotibial band syndrome
• Knee bursitis (inflammation of fluid-filled sacs in the knee joint)
• Lupus
• Medial collateral ligament injury
• Osgood-Schlatter disease
• Osteoarthritis (disease causing the breakdown of joints)
• Osteochondritis dissecans
• Osteomyelitis (a bone infection)
• Patellar tendinitis
• Patellofemoral pain syndrome
• Posterior cruciate ligament injury
• Pseudogout
• Referred pain from hip area
• Septic arthritis
• Sprains
• Tendinitis
• Torn meniscus