Osteoarthritis is a form of arthritis that causes the flexible tissue at the ends of bones to degrade.
Osteoarthritis is a disease of the joints. Unlike many other forms of arthritis, such as rheumatoid arthritis and systemic lupus, osteoarthritis does not affect other organs of the body.
Joint pain is usually worse later in the day. There can be swelling, warmth, and creaking of the affected joints. Pain and stiffness of the joints can also occur after long periods of inactivity, for example, sitting in a theater.
In severe osteoarthritis, complete loss of cartilage causes friction between bones, causing pain at rest or pain with limited motion.
Osteoarthritis is caused by aging joints, injury, and obesity.
Treatment depends on the affected joint, including the hand, wrist, neck, back, knee, and hip, and involves medication and exercise. If you are overweight, weight loss may improve osteoarthritis symptoms.