Rheumatoid factor negative. What does that mean?

Rheumatoid factor negative what does it mean? Often patients ask this question, the following please capital medical university affiliated beijing century altar hospital chief physician zhao miansong for your interpretation. When the rheumatoid factor is detected clinically, it depends on its test method to see what type it detects. Its negative is not necessarily true negative, because it may be a problem with the test method, and it may be a problem with the type of detection. Therefore, the negative rheumatoid factor cannot deny rheumatoid arthritis.