Patient's question:
The child is only 12 years old, and their health has always been good. Recently, though, they've been complaining of pain here and there. Sometimes, when we go outside for a walk, after walking for a while, they say their knee joints hurt. Other times, they don't do much—they just go to school normally, and when they come back, they say their arms hurt and feel sore. I'm very worried that this young child might have something like rheumatoid arthritis or rheumatoid joint pain.Doctor's answer:
Children can also get rheumatoid arthritis. Juvenile idiopathic arthritis (JIA) is a common connective tissue disease in children. JIA has many differences from adult rheumatoid arthritis. Its characteristics include systemic symptoms such as fever, rash, hepatosplenomegaly, lymphadenopathy, pleuritis, and pericarditis, in addition to joint inflammation and deformities. Younger children often first exhibit persistent, irregular fever, and their systemic symptoms are usually more pronounced than their joint symptoms. Many studies suggest that this disease is related to immunity, infection, and genetic factors, but the exact cause and mechanism of disease onset have not yet been fully determined.