Colon cancer any signs?

Not always: Colon cancer tends to not have any signs or symptoms when it is early (when it is easiest to treat). That is why screening colonoscopies are so important, to remove any polyps that may become cancer, and to directly look for cancers. Colon cancer can cause bleeding from the rectum, tiredness from anemia, stool changes, or abdominal pain. Other things can cause this too. Best to be seen if ?S.

A lot of times none: A lot of times colon cancer has no or minimal symptoms until it reaches a larger size. If causing symptoms they are blood in stool, change in stool caliber or shape, change in bowel habits, anemia, weight loss, abdominal pain and bloating, and some other symptoms. If you are concerned it is better to see a doctor. If the doctor becomes suspicious to colon cancer he will send you for colonoscopy.