Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Cystocele ?
    ### Response:
    A cystocele, also called a prolapsed or dropped bladder, is the bulging or dropping of the bladder into the vagina. The bladder, located in the pelvis between the pelvic bones, is a hollow, muscular, balloon-shaped organ that expands as it fills with urine.
    