Rheumatoid factor is commonly used as a blood test for the diagnosis of rheumatoid arthritis. However, rheumatoid factor can also be present in individuals with other conditions such as lupus, infectious hepatitis, syphilis, mononucleosis, tuberculosis, liver disease, and sarcoidosis. Read more: Rheumatoid Factor (RF) Article
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Rheumatoid Arthritis (RA) Symptoms & Treatment
What is rheumatoid arthritis (RA)? Learn about juvenile rheumatoid arthritis. Discover rheumatoid arthritis (RA) symptoms,...
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Rheumatoid Arthritis Quiz: What is Rheumatoid Arthritis?
How is rheumatoid arthritis different from other forms of arthritis, such as osteoarthritis and gout? Take the Rheumatoid...
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Picture of Systemic Lupus Erythematosus 1
A chronic inflammatory condition caused by an autoimmune disease. See a picture of Systemic Lupus Erythematosus (SLE) and learn...
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Picture of Syphilis
A sexually transmitted disease caused by Treponema pallidum, a microscopic organism called a spirochete. See a picture of...
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Picture of Lupus
A chronic inflammatory condition caused by an autoimmune disease. See a picture of Lupus Rash and learn more about the health...
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Picture of Systemic Lupus Erythematosus 2
Erythematous, edematous plaques appear in a "butterfly" distribution on the face. See a picture of Systemic Lupus Erythematosus...
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Rheumatoid Arthritis (RA) Exercises Slideshow: Joint-Friendly Fitness Routines
Regular exercise boosts fitness and helps reverse joint stiffness for people with rheumatoid arthritis (RA). Our experts offer...
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Psoriatic Arthritis Symptoms, Treatment, Images
What is psoriatic arthritis? Psoriatic arthritis is an arthritis type that comes with psoriasis (skin inflammation). Psoriatic...
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