My mom 87 yrs is post op for a colon resection - her right colon was removed along with a grapefruit size tumor (benign) on July 21st. Her bowels began working on July 27th - no blood, no pain, no swelling. Her surgery was laproscopic then a 3 - 4 in incision was made to remove the colon and tumor on her right side. She is eating normally and has not has any difficulty so far. this morning she woke up with a reddish brown substance in her mouth she told me this has happened a couple of days - should we return to the ER - she is 4ft 11in and weighs 157 lbs