Hello, beige stool may mean a lack of bilirubin like in obstructive jaundice. In most cases, the color has to do with the food but checking for jaundice sounds like a good idea when the color is too light. The easiest way to find out is by measuring serum bilirubin levels (total and direct). Neither ibuprofen use nor the sensation on the incision seem relevant to the stool color. I hope I ve answered your question. Please let me know if you need further assistance. Kind Regards, Dr. Panagiotis Zografakis, Internal Medicine Specialist