Below is an instruction from Human. Write a response.
    ### Instruction:
    Is juvenile idiopathic arthritis inherited ?
    ### Response:
    Most cases of juvenile idiopathic arthritis are sporadic, which means they occur in people with no history of the disorder in their family. A small percentage of cases of juvenile idiopathic arthritis have been reported to run in families, although the inheritance pattern of the condition is unclear.
    