Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Kidney Stones in Children ?
    ### Response:
    The process of diagnosing any illness begins with consideration of the symptoms. Pain or bloody urine may be the first symptom. Urine, blood, and imaging tests will help determine whether symptoms are caused by a stone. Urine tests can be used to check for infection and for substances that form stones.
    