Symptoms
A common symptom of colorectal cancer is a change in bowel habits. Symptoms include:
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Having diarrhea or constipation
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Feeling that your bowel does not empty completely
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Finding blood (either bright red or very dark) in your stool
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Finding your stools are narrower than usual
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Frequently having gas pains or cramps, or feeling full or bloated
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Losing weight with no known reason
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Feeling very tired all the time
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Having nausea or vomiting
Most often, these symptoms are not due to cancer. Other health problems can cause the same symptoms. Anyone with these symptoms should see a doctor to be diagnosed and treated as early as possible.
Usually, early cancer does not cause pain. It is important not to wait to feel pain before seeing a doctor.
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