What are the clinical manifestations of rheumatoid arthritis?

Clinical symptoms of rheumatoid arthritis mainly include joint manifestations such as joint swelling and pain, morning stiffness, and extra-articular manifestations such as subcutaneous nodules and interstitial pneumonia.
1. Joint manifestations: Typical manifestations are symmetric, polyarticular and peripheral joint inflammation, with the proximal interphalangeal joints, metacarpophalangeal joints, wrist joints and metatarsophalangeal joints being the most common. Stiffness and pain are more obvious after waking up in the morning or after resting the joints, which is called morning stiffness. In the advanced stage, patients may also have deformities such as ulnar deviation of the fingers and palms and gooseneck-like deformities.
2. Extra-articular manifestations: easy to see when the disease is serious or the joint symptoms are prominent, which can be a single organ or affect multiple internal organs at the same time. Commonly, such as subcutaneous nodules, lung involvement appears interstitial pneumonia, pleurisy, etc., heart involvement appears pericarditis, myocarditis, etc., the nervous system can appear peripheral neurofibropathy, etc., and scleritis, esophagitis and other manifestations.
It is recommended that patients with rheumatoid arthritis go to the rheumatology and immunology department of the hospital in time, and under the guidance of the doctor for standardized treatment.