Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Polycystic Ovary Syndrome ?
    ### Response:
    Polycystic ovary syndrome (PCOS) happens when a woman's ovaries or adrenal glands produce more male hormones than normal. One result is that cysts (fluid-filled sacs) develop on the ovaries. Women who are obese are more likely to have polycystic ovary syndrome.
    