The first sign of bowel cancer can vary from person to person, and some people may not experience any symptoms at all in the early stages of the disease. However, some common early warning signs of bowel cancer include:

• Changes in bowel habits: This can include more frequent diarrhea or constipation, or a feeling that the bowel doesnt empty all the way during a bowel movement.

• Blood in the stool: This can be bright red or dark in color.

• Abdominal pain or discomfort: This can include cramps, gas, or pain.

• Unexplained weight loss: Losing weight without trying.

Its important to note that these symptoms can also be caused by other conditions, and having them does not necessarily mean you have bowel cancer. However, if you experience any of these symptoms for three weeks or more, you should see a doctor. Additionally, if you are over 45 years old, you should consult your physician to determine the right screening test for you.