A Answers (2)
Unfortunately, because juvenile idiopathic arthritis is an autoimmune disease, it is more prevalent in females. It also has some genetic predisposition, so if one family member has rheumatic arthritis or another autoimmune disease, then the rest of the family is at higher risk. What starts the autoimmune process isn't known, but stress and potentially viruses may cause the initial insult that starts the patient's immune system attacking the joints.
No clear risk factors for juvenile idiopathic arthritis (JIA) are known at this time. It may run in families.
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