What is seronegative rheumatoid arthritis?

Seronegative rheumatoid arthritis is a type of rheumatoid arthritis in which the person does not have any of the autoantibodies that are typically associated with the condition. This means that the person does not have any rheumatoid factor (RF) or anti-citrullinated peptide antibodies (ACPAs) in their blood.

Seronegative rheumatoid arthritis is less common than seropositive rheumatoid arthritis, accounting for about 10-20% of all cases. It is more common in men than in women, and it tends to occur later in life than seropositive rheumatoid arthritis.

The symptoms of seronegative rheumatoid arthritis are the same as those of seropositive rheumatoid arthritis, including joint pain, stiffness, swelling, and inflammation. However, people with seronegative rheumatoid arthritis may have a milder course of the disease, and they may be less likely to develop joint damage.

The diagnosis of seronegative rheumatoid arthritis is based on the person's symptoms, a physical examination, and blood tests to rule out other conditions. Imaging studies, such as X-rays or magnetic resonance imaging (MRI), may be used to assess the extent of joint damage.

The treatment of seronegative rheumatoid arthritis is the same as that of seropositive rheumatoid arthritis, and may include medications to relieve pain and inflammation, and slow the progression of the disease.