Rheumatic arthritis, also known as rheumatic fever, primarily develops due to infection by Group A beta-hemolytic streptococci in the throat area, which triggers recurrent episodes of systemic connective tissue inflammation. It mainly affects the joints, heart, skin, and subcutaneous tissues, and occasionally the central nervous system can be involved, as well as significant internal organs such as the lungs and kidneys. Clinically, it often presents primarily with arthritis and carditis, and may be accompanied by fever, rash, subcutaneous nodules, and chorea. This disease has a certain degree of self-limitation, and acute episodes often predominantly feature joint pain.