Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Mitral Valve Prolapse ?
    ### Response:
    The exact cause of mitral valve prolapse (MVP) isn't known. Most people who have the condition are born with it. MVP tends to run in families. Also, it's more common in people who are born with connective tissue disorders, such as Marfan syndrome.
                

    