What are the causes and symptoms of knee injuries?
Arthritis may develop from an auto-immune disorder, known as rheumatoid arthritis, or may be caused by the gradual wear and tear of the joint, known as osteoarthritis. Symptoms of arthritis in the knee include pain ranging from dull aches to severe pain, and may be accompanied by swelling and range of movement loss. Arthritic symptoms may tend to be worst in the morning and decrease throughout the day as the knee is used. Arthritis can be caused by lupus, Lyme disease, and other infections. Knee swelling also may be caused by bursitis, the inflammation of the bursa. Cartilage injuries may include chondromalacia, with symptoms including dull pain and pain while climbing stairs. Damage to the minisci cartilage often occur from sudden twists, forceful plants, and awkward movements. A torn cartilage may make a popping sound, and may be accompanied by mild to severe pain, particularly while straightening the leg. Swelling, stiffening, and loss of movement are also symptoms of cartilage tear
