Felty's SyndromeView All Arthritis Types
Felty's syndrome (FS) is a complication of rheumatoid arthritis (RA). It is defined by the presence of three conditions: rheumatoid arthritis, an enlarged spleen and an abnormally low white blood count. People with FS suffer an increased risk of infection due to their low white blood cell count. Their symptoms may include a general feeling of discomfort – or "malaise" – fatigue, loss of appetite and weight loss, a pale colour, recurrent infections and eye burning and/or discharge.
View All Arthritis Types
People with FS will also typically experience joint swelling, stiffness, pain and deformity, but these symptoms will likely be due to the rheumatoid arthritis. In fact, many of these symptoms could also occur as a result of RA. It is the enlarged spleen (which shows up in a physical examination) and the low white blood count (that shows up in a blood test) that signal the presence of FS.