That is a great question and there can be a lot of confusion on the subject. The answer, however, is simple. Penis enlargement is simply the broad topic and concept of increasing penis size.

On the other hand, the penis extender is a tool, device, and/or method to achieve penis enlargement. So essentially penis enlargement is the end result that you achieve from using a penis extender, penis stretcher, pump, pill, exercise, or other penis enlargement methods.