manymules

This is a great question to ask your NUT. Immediately after surgery it is hard to drink a large volume of Water at once, but that restriction lessons as you heal.
By the way, this thread is a couple of years old. You may get better feedback of you start a thread with your specific question.
Best of luck.

I developed some wicked constipation several months after surgery. Nothing seemed to work except inserting a glycerin suppository up my rectum every three days. I finally stumbled onto a cure, at least for me. I found out that if I eat an apple before I go to bed, the problem went away. But it is important to eat the skin of the apple also. So for the last 6 months, I eat an apple or two each day, and I am no longer bothered by this issue.