Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Rotor syndrome ?
    ### Response:
    Rotor syndrome is an inherited disorder characterized by elevated levels of bilirubin in the blood (hyperbilirubinemia). Bilirubin is produced when red blood cells are broken down, and has an orange-yellow tint. The buildup of bilirubin in the body causes yellowing of the skin or whites of the eyes (jaundice), which is the only symptom of the disorder.
    