Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Von Willebrand Disease ?
    ### Response:
    Von Willebrand disease (VWD) is a bleeding disorder. It affects your blood's ability to clot. If your blood doesn't clot, you can have heavy, hard-to-stop bleeding after an injury. The bleeding can damage your internal organs. Rarely, the bleeding may even cause death.
    