Thank you for the query.
First of all it would be good to know the reason of the abscess
creation. Usually there is no reason for abscess to create during the regular colon
removal. Such abscess presence usually means that there is a leakage in the intestinal anastomosis
(surgical connection between two parts of intestine previously detached). Such leakage results with stool leakage to the abdominal cavity. Such situation causes inflammatory process inside the abdominal cavity causing adhesions creation and anastomosis narrowing. Both adhesions and narrow anastomosis impedes stool passage and results with symptoms like yours.
That is why you should have abdominal CT with oral contrast performed (so called enteroclysis) to see if are there any obstacles. Full blood work with CRP (inflammation marker) should be performed to see if there is no other abscess.
If no findings in CT, you may have performed laparoscopy
as very often adhesions can not be see in the CT.
Hope this will help.