The common symptoms of rheumatoid arthritis are joint pain, joint swelling and morning stiffness. Rheumatoid arthritis is a chronic systemic inflammatory disease that mainly involves the peripheral joints. The cause of the disease has not yet been clarified, and it is currently considered to be an autoimmune disease. Rheumatoid arthritis most commonly affects the joints and causes joint pain, swelling and morning stiffness, joint deformity and difficulty in joint movement. It can also cause muscle pain, weight loss and fever. Symptoms such as hemoptysis, chest pain, chest tightness, cough and shortness of breath may also occur when rheumatoid arthritis is complicated by pleurisy, pulmonary hypertension, interstitial lung disease and rheumatoid pneumoconiosis. Rheumatoid arthritis patients are advised to go to the rheumatology and immunology department of the regular hospital for detailed consultation and treatment as prescribed by the doctor.