Felty Syndrome


Felty Syndrome
Super rheumatoid disease


Felty syndrome is a rare, potentially serious disorder which is characterized by the presence of three symptoms : rheumatoid arthritis, splenomegaly (enlarged spleen) and neutropenia (a decreased white cell count) which can lead to repeated infections.  It also associated with seropositive (rheumatoid factor (RF) – positive rheumatoid arthritis.

Patient Groups

None available


None available


FS affects about 1-3% of all people diagnosed with rheumatoid arthritis (RA), which occurs in about 1% of the general population. True prevalence is difficult to ascertain.

Typical Age of onset

FS is most common during the fifth through seventh decades of life and is usually associated with having 10 years of RA preceding it. It is 3 times more common in women than men.


  • Painful, stiff and swollen joints most commonly in the joints of the hands, feet, and arms.

  • Fever

  • Fatigue

  • Weight loss

  • Anemia

  • Thrombocytopenia

  • Vasculitis