DefinitionThe prostate is a male reproductive gland that produces the fluid that carries sperm during ejaculation. It surrounds the urethra, the tube through which urine passes out of the body.An enlarged prostate means the gland has grown bigger. Prostate enlargement happens to almost all men as they get older. As the gland grows, it can press on the urethra and cause urination and bladder problems.An enlarged prostate is often called benign prostatic hyperplasia (BPH) or benign prostatic hypertrophy. It is not cancer, and it does not raise your risk for prostate cancer.Alternative NamesBPH; Benign prostatic hypertrophy (hyperplasia); Prostate - enlargedCauses, incidence, and risk factorsThe actual cause of prostate enlargement is unknown. Factors linked to aging and the testicles themsel