Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Aquagenic pruritus ?
    ### Response:
    Aquagenic pruritus is a condition in which contact with water of any temperature causes intense itching without any visible skin changes. The symptoms may begin immediately after contact with water and can last for an hour or more. The cause of aquagenic pruritus is unknown; however, familial cases have been described.
    