Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Chronic inflammatory demyelinating polyneuropathy ?
    ### Response:
    Chronic inflammatory demyelinating polyneuropathy (CIDP) is a neurological disorder that causes progressive weakness and impaired sensory function in the legs and arms. Symptoms often include tingling or numbness (first in the toes and fingers); weakness of the arms and legs; loss of deep tendon reflexes; fatigue; and abnormal sensations.
    