Blood clots, especially those that originate in the brain, can occur very quickly. If there are lots of veins around to adequately redirect blood flow, the clot will stop growing at a certain point and the body can accommodate it indefinitely. It may even disappear with time.
Here are some of the common signs and symptoms of: 1  NO SYMPTOM AT ALL. 2  Diarrhea (that will not stop) that lasts for more than a few days, not just after eating Taco Bell. 3  Constipation (you canât âgoâ to save your life) that lasts for more than a few days. 4  Unintended or unexplained weight loss (or weight gain) 5  Vomiting.
Some changes in bowels habits may be considered colon cancer signs. They include: 1  Change in frequency of bowel movements. 2  Constipation. 3  Change in consistency of stool (loose or watery stools). 4  Blood in stools (either as bright red spots or dark tarry stools). 5  Rectal bleeding. 6  Abdominal pain (bloating, gas or cramps). 7  Feeling you cannot completely empty your bowels.