Below is an instruction from Human. Write a response.
    ### Instruction:
    What to do for Prostate Enlargement: Benign Prostatic Hyperplasia ?
    ### Response:
    - Benign prostatic hyperplasiaalso called BPHis a condition in men in which the prostate gland is enlarged and not cancerous.  - The prostate is a walnut-shaped gland that is part of the male reproductive system.  - The cause of benign prostatic hyperplasia is not well understood; however, it occurs mainly in older men.
    