Welcome to Just Answer and thanks for your question. I'd really like to help you, but I'm confused. What was operated on that left a bikini scar? Generally bikini scars are abdominal scars and I'm not seeing how this can affect your colon which is on the back side of your body. Maybe you can give me some more information and help me get my bearings.
I am going to opt out and see if one of our other experts can help you. you don't have to do anything.