Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Osteoporosis ?
    ### Response:
    Osteoporosis does not have any symptoms until a fracture occurs. Some people may be unaware that they have already experienced one or more spine fractures. Height loss of one inch or more may be the first sign that someone has experienced spinal fractures due to osteoporosis.
    