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