View Risk Factor Rheumatoid Arthritis PNG. Webmd explains how sex, genetics, and even smoking can play a role in causing ra. While the exact cause of rheumatoid arthritis is unknown, there are several risk factors that could increase your chances of getting it.
Rheumatoid arthritis support groups and counseling. The exact causes are unclear, but certain factors increase a person's risk. Approximately 20% of people with rheumatoid arthritis are classified as seronegative, which means the rheumatoid factor blood test is negative, or normal.
Lifestyle risk factors are those that are modifiable.
Approximately 20% of people with rheumatoid arthritis are classified as seronegative, which means the rheumatoid factor blood test is negative, or normal. Rheumatoid factor was first described in connection to rheumatoid arthritis in 1940. Ra is an autoimmune disease, which means the immune medical research has not identified a specific cause for rheumatoid arthritis. The exact causes are unclear, but certain factors increase a person's risk.