Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Scoliosis ?
    ### Response:
    Scoliosis causes a sideways curve of your backbone, or spine. These curves are often S- or C-shaped. Scoliosis is most common in late childhood and the early teens, when children grow fast. Girls are more likely to have it than boys. It can run in families.
    