The prostate is a gland in the male reproductive system located just below the bladder (the organ that collects and empties urine) and in front of the rectum (the lower part of the intestine). It is about the size of a walnut and surrounds part of the urethra (the tube that empties urine).
As men age, the prostate continues to grow and may push in on the urine passage. A prostate gland that is larger than normal is said to be hypertrophic, and the condition is called benign prostatic hyperplasia (BPH). This enlargement may or may not cause symptoms, and symptoms are not directly related to the prostate size. When symptoms are present, the terminology LUTS indicating lower urinary tract symptoms is used.
Possible symptoms of prostatic hyperplasia include: 
Frequent daytime urination

Getting up at night to urinate

Hesitancy when starting to urinate

Recurrent urinary tract infections

Sensation of incomplete emptying of the bladder

Stopping and starting of urine stream

Urgency with or without leakage of urine

Weak urine stream
Benign Prostatic Hyperplasia Resources
Diagnostic Tools
TreatmentThis information was compiled with help from the following Web sites. Please see them for more information on benign prostatic hyperplasia.
American Academy of Family Physicians
Wayne State University School of Medicine