Hello jane1321!
I have had a lot of surgeries on my abdomen but only one on my colon. If there is scar tissue that is causing problems, unfortunately the only way to correct it is surgery. I understand where the doctor is coming from but it may be worth a try. If you don't get the scar tissue removed it might cause more problems down the road. After surgery follow doctors orders to a tee so you can heal properly, I am not sure if there is a way to prevent scar tissue on the inside but I know I have had a lot of issues with scar tissue around incision sites because I did too much too soon. Take time to heal.
Have you found out when you are seeing the surgeon yet? I would definitely talk to him about your concern with more scar tissue building up and things that you can do to prevent it. Before and after surgery eat a lot of protein, it helps you heal. Basically just get your body as healthy as you possibly can before surgery.
I hope this helps, let me know if you have any more questions