i have blood stool and always blood come first sometimes lliqued and sometimes coagulated but i have some constipation and most vegitable food no digested and sometimes stool have ball shape i make colonscopy but find only wbs attack the mucosa of the colon and no sign in the biopsy for any tumor >i take salasopyrin may be for one year but still till now blood come when weather be cool what do you think of this be?