5 Surprising Signs of Colon Cancer

2. Constipation that changes with diarrhea may form quite long cycles.

More significant signs of the colon cancer appear during the tumor growth. As a rule, patients notice the following symptoms:
The presence of blood in the stool. There may be separate streaks as well as larger pieces
Pus and mucus appear in the stool causing an unpleasant smell of excrements