- Osteoarthritis causes deterioration of the cartilage around the joints as well as excess bone growth. Rheumatoid arthritis is an inflammation of the synovial membranes (the connective system of the joints) which destroys cartilage.
- Osteoarthritis occurs in a specific part of the body, often the fingers, hands or knees. Rheumatoid arthritis occurs throughout the body with symptoms in more than one area.
- Rheumatoid arthritis is also an autoimmune disease, where the immune system does not function correctly and attacks the organs of the body. Osteoarthritis does not involve the immune system.
- Osteoarthritis is more common in those over 40 and does not favor gender. Rheumatoid arthritis can happen at any age (most often age 20 to 60) and is most common in women.
- Osteoarthritis can also be caused by carrying excess weight or repetitive activity that puts a strain on the joints. While the cause of rheumatoid arthritis is unclear, it is not caused by lifestyle.
- Osteoarthritis is a common ailment that damages the joints. Rheumatoid arthritis is less common, but more severe as it can affect the entire body.
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Immune System
Age and Gender
Cause
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