Rheumatoid arthritis is a chronic progressive autoimmune disease with a female predilection, with symmetric polyarticular swelling and pain as the main manifestation, which can cause deforming changes in the joints at a later stage and lead to loss of joint function. The early symptoms of rheumatoid arthritis are due to immune inflammation and take the form of both joint manifestations and extra-articular manifestations, of which the joint manifestations are predominant. Rheumatoid arthritis mainly affects small and medium-sized joints in the body, such as the metacarpophalangeal and interphalangeal joints of the hands, wrists, elbows, metatarsophalangeal joints of the feet, ankles, etc. The knee joints also often accumulate. Joint swelling and pain is the most common clinical manifestation in the early stage of the disease, accompanied by morning stiffness, i.e., stiffness and swelling of the joints after waking up in the morning, which is relieved after activity, and morning stiffness lasts for more than one hour. If treatment is not timely, joint deformities may occur in the later stages of the disease, such as “swan neck” deformity similar to swan neck and “button flower” deformity similar to button flower shape in finger joints, at which time the joints are mostly ankylosed, normal joint function is lost, and cannot complete The normal joint function is lost and the general daily activities cannot be completed. The early symptoms of rheumatoid arthritis also include extra-articular symptoms, including pulmonary lesions, where patients often feel shortness of breath and weakness after activity, persistent dry cough, and interstitial fibrosis of the lungs as indicated by chest CT examinations. This shows that the early symptoms of rheumatoid arthritis are mainly joint swelling and pain, and once suspicious symptoms appear, you should immediately consult a doctor for early diagnosis.