After colectomy, in first few weeks there is a frequent secretion of stool. why is this? and colour of stool is that of what i eat. why so?

Bowel irregularity: A change in bowel habits is normal after colectomy. This varies according to the segment removed and most change returns to normal in several weeks. Removal of some sections of the colon can cause a more prolonged chane (ie. Removal of the right colon along with the ileocecal valve). We usually advise our patients to maintain a low fiber diet for a week or two after colon rersection and give thing.