Infection, Immunity & Autoimmune Disease

Rheumatoid factor

Also called: RF

What does Rheumatoid factor mean?

An antibody that can be present in rheumatoid arthritis but also occurs in other conditions and some healthy people.

U.S. National Library of Medicine
Understanding Medical Words ↗ National Cancer Institute
Cancer Terms Dictionary ↗ CDC
Vaccine Glossary ↗

This is a plain-language Healthway explanation, not an individual diagnosis. The meaning of a term can change with the clinical context in which it appears.