Biopsy • Doctor snips a small piece of tissue, which is looked at closely under a microscope.

Bladder • Pouch inside your body where urine is stored. When the bladder is full, you feel like you need to pass your urine.

Bone scan • An imaging procedure to tell if prostate cancer has spread to the bones.

Bowels • The long tube in the body that holds bowel movements.

Brachytherapy • Type of internal seed radiation sometimes used to treat prostate cancer. The seeds are inserted through the area underneath the testicles.