Can you tell me how to urinate fully with an enlarged prostate?

Depends: It depends on the degree(if any)of the bladder outlet obstruction If you have a feeling of incomplete emptying you should see a urologist who will do a uroflometry to measure how fast your flow is and a postvoid bladder scan to see if you retain urine and how much.A digital rectal exam will be done. If indicated you will be prescribed the appropriate medication. Usually an alpha one blocker.