In the male anatomy the urinary tract in particular the base of the bladder has the Urethra passing through a gland called the prostate. The prostate is a male specific organ that also additionally has the propensity to swell, and obstruct the flow of urine. This condition is called BPH or Benign Prostatic Hyperplasia, it is a relatively easy to treat. The prostate however also has the nasty addition of being a common sight of malignancy or cancer, which is why two forms of testing are done involving the prostate in older gentlemen; A PSA or Prostate Specific Antigen blood test and Prostate Exam (the stuff men don't ever really want to talk about).