Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Enlarged Prostate (BPH) ?
    ### Response:
    The prostate is a gland in men. It helps make semen, the fluid that contains sperm. The prostate surrounds the tube that carries urine out of the body. As men age, their prostate grows bigger. If it gets too large, it can cause problems. An enlarged prostate is also called benign prostatic hyperplasia (BPH).
    