What are the early symptoms of rheumatic fever?
The main manifestations are redness, swelling and pain in the joints, inability to straighten, limited mobility, and arthritis will occur alternately in major joints, and children with severe conditions will have heart inflammation, which can be manifested as increased heart rate, sweating, shortness of breath, and the examination can find that the heart is enlarged.
The early symptoms of rheumatic fever in young children are mainly joint inflammation, and the common high-incidence parts are large joints, such as shoulder joints, knee joints, ankle joints, elbow joints, etc. Rheumatic fever in young children is mainly caused by abnormal immune function, such as rheumatic fever after the development of facial coccal infectious diseases.
What is rheumatic fever?
In this process, immune cells mistake some normal tissues in the body for hemolytic streptococcus and attack them together, for example, the common joint as a lesion, the joint attacked by immune cells causes arthritis, and the attack on the heart valve causes inflammation of the heart valve. Rheumatic fever is an autoimmune disease caused by infection of hemolytic streptococci bacteria. When hemolytic streptococcus infects the human body, the body's immune cells recognize the hemolytic streptococcal characteristics, and according to the hemolytic streptococcal characteristics, the immune system produces antibodies to produce living immune cells to attack it. Because hemolytic streptococci did not directly invade these diseased tissues, hemolytic streptococcal infection induced autoimmune dysfunction, resulting in these normal tissues being attacked by immunity.
Secondary manifestations of rheumatic fever
The diagnosis of rheumatic fever is based on the main manifestations, such as carditis, typical arthritis, chorea, erythema annulae, subcutaneous nodules, etc., and should also be combined with valid evidence of streptococcal infection, such as a significant increase in throat swab () or anti-chain O.