The other ineresting fact about the sphincter is that is has muscles like the neck muscle, that operate on an involuntary basis. Your neck muscles are constantly flexing and relaxing to keep your head level.
We don't tell our neck muscles to do this. Likewise, your sphincter has to keep pressure on the urethra, and when we cough or lift something heavy, they have to respond to keep it tight, but then relax enough to hold the urine back, without clamping down too tight.
But then they will respond when we tell them to, like when we have to pee.
That is a lot of what kegeling is doing besides building strength, is teaching them how to automatically control the flow, without us always telling it what to do.
Age 58, PSA 4.47 Biopsy - 2/12 cores , Gleason 4 + 5 = 9
Da Vinci, Cleveland Clinic 4/14/09 Nerves spared, but carved up a little.
0/23 lymph nodes involved pT3a NO MX
Catheter and 2 stints in ureters for 2 weeks due to anatomical issues with location of ureters with respect to bladder neck. Try 3 tubes where no tubes are supposed to be for 2 weeks !
Neg Margins, bladder neck negative
Living the Good Life, cancer free 6 week PSA <.03
3 month PSA <.01 (different lab)
5 month PSA <.03 (undetectable)