Symptoms of colorectal cancer include:
- Change in bowel habits (diarrhoea or constipation)
- Nausea or vomiting
- Feeling that the bowel does not empty completely
- Chronic tiredness
- Blood (either bright red or very dark) in stools
- Narrower than usual stools
- Frequently having gas pains and cramps or feeling full and bloated
- Unexplained weight loss
Other health problems can also cause these symptoms but you should see your doctor if you experience these symptoms.