Is the internal sphincter important to post prostatectomy continence in the treatment prostate cancer?

What is the internal sphincter in regards to the male bladder, post prostatectomy incontinence and the external sphincter?” Hmmmmmmmmmm? If the internal sphincter is so important to continence then why don’t men leak after a TURP?

Dr. Catalon’s explanation of post prostatectomy anatomy and continence.

There  was  a comment about the internal sphincter and a patient being disappointed that the urologist did not tell him that it would be removed at the time of a prostatectomy. The patient has incontinence and is concerned that if the internal sphincter had not been removed he would not be leaking urine.  Here are my thoughts and my understanding of continence after the prostate is removed..

But first….Walsh’s take on this matter…on in which I am in full agreement.

• The external sphincter is a defined muscle that one can contract and stop and start the urinary stream.
• It is the primary sphincter for the control…