Common signs and symptoms of colon cancer include:
* A change in bowel habits
* Diarrhea, constipation or feeling that the bowel does not empty completely
* Blood, either bright red or very dark in the stool
* Stools that are narrower than usual
* General abdominal discomfort such as frequent gas pains, bloating, fullness or cramps
* Weight loss with no known reason
* Constant tiredness
* Vomiting
#2
Symptoms of colon cancer are numerous and nonspecific. They include fatigue, weakness, shortness of breath, change in bowel habits, narrow stools, diarrhea or constipation, red or dark blood in stool, weight loss, abdominal pain, cramps, or bloating. Other conditions such as irritable bowel syndrome (spastic colon), ulcerative colitis, Crohn's disease, diverticulosis, and peptic ulcer disease can have symptoms that mimic colorectal cancer
#3
painful deification, inability to go to the bathroom, blood in stool, abdominal enlargement, bloating, pain, if it spreads then you may have other symptoms related to whatever organs it affects.
#4
Sometimes there are no symptoms.