What is a common characteristic of rheumatoid arthritis?

A common characteristic of rheumatoid arthritis is the loss of joint function. This autoimmune disorder primarily affects the synovial joints, leading to inflammation of the synovial membrane, which can result in pain, swelling, and damage to the cartilage and bone over time. As the disease progresses, this inflammation can lead to decreased mobility and a considerable reduction in joint function, impacting the quality of life for those affected.

Rheumatoid arthritis can occur in individuals of various ages, not solely the elderly, and it does not exclusively affect the upper limbs, as it can impact multiple joints throughout the body, including the knees, ankles, and hands. While there can be viral triggers associated with arthritis, they are not a defining characteristic of rheumatoid arthritis itself. The hallmark feature remains the progressive loss of joint function due to the chronic inflammatory process.