Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Thrombotic thrombocytopenic purpura, congenital ?
    ### Response:
    What are the signs and symptoms of Thrombotic thrombocytopenic purpura, congenital? The Human Phenotype Ontology provides the following list of signs and symptoms for Thrombotic thrombocytopenic purpura, congenital. If the information is available, the table below includes how often the symptom is seen in people with this condition.
    