Many people experience chronic pain in their joints and muscles. Some people may think they have arthritis; some think they are tired and may have a strain injury, and these are diseases that can have the potential to cause chronic pain in joints and muscles. However, there is another type of disease that can cause chronic pain in joints and muscles, and this is rheumatism. Rheumatic diseases include a large group of diseases, including rheumatoid arthritis, systemic lupus erythematosus, ankylosing crepitis, etc.. These diseases mostly cause chronic pain in joints, soft tissues around joints, muscles, and bones. Rheumatic diseases are autoimmune diseases. The so-called autoimmune disease means that these patients have produced an abnormal antibody in their bodies, and these antibodies can destroy their normal joint and muscle tissues, causing these tissues to become diseased. Rheumatic diseases also lead to chronic inflammation of the body’s blood vessels and connective tissues, involving several systems, including the muscular and skeletal systems, and in some cases, even endangering internal organs. The manifestations and prognosis of rheumatic diseases vary widely among patients. The course of rheumatic diseases is usually very long, and in advanced stages they can involve multiple organ damage, making treatment very difficult. Therefore, rheumatic diseases need to be diagnosed early and treated appropriately to obtain a reasonable prognosis. If you experience chronic pain in joints and muscles, you need to consider visiting a rheumatologist to rule out the possibility of having rheumatic disease.