Urinating less after surgery ???

I have incontinence, up every hour on the hour at night before surgery. Now down to once a night. This is just another reason why I decided on WLS as at the seminars they said that 75% people with this problem before surgery it stops after a weight is lost.  The fat around the stomach and other organs around the bladder push on the bladder and makes a person pee.  Once the weight starts coming off, it takes the pressure off the bladder and like some one else said helps the nerves in the bladder to calm down.  

This is very normal unless like other said, the urine is painful or dark brown.  

Granny