Definition
Knee pain can be caused by problems with the knee joint. Or it can be caused by problems with the soft tissues around the knee joint. These soft tissues include ligaments, tendons and bursae.
Knee pain affects everyone differently. You might feel knee pain only when you’re active. Or you may feel knee pain even while sitting still. For some, the pain is a slight twinge. For others, the pain gets in the way of daily life. Often, self-care steps can help to relieve knee pain.
Causes
Knee pain causes include:
ACL injury (tearing of the anterior cruciate ligament in your knee)
Avascular necrosis (osteonecrosis) (The death of bone tissue due to limited blood flow.)
Baker cyst
Broken leg
Collateral ligament injury
Dislocation: First aid
Gout
Iliotibial band syndrome
Knee bursitis (inflammation of fluid-filled sacs in the knee joint)
Lupus
Medial collateral ligament injury
Osgood-Schlatter disease
Osteoarthritis (the most common type of arthritis)
Osteochondritis dissecans
Osteomyelitis
Patellar tendinitis
Patellofemoral pain syndrome
Posterior cruciate ligament injury
Pseudogout
Referred pain from hip area
Septic arthritis
Sprains (Stretching or tearing of a tissue band called a ligament, which connects two bones together in a joint.)
Tendinitis (A condition that happens when swelling called inflammation affects a tendon.)
Torn meniscus
