Signs & Symptoms

Colorectal cancer can cause one or more of the symptoms below.

Consult your doctor if you have:

  • Persistent abnormal bowel habits with no apparent reason; constipation or diarrhea (or a combination of the two) and/or narrow or very dark stools;
  • Loss of blood through the anus or blood in the feces, despite having no irritation, pain or itching in the area;
  • Feeling that the intestine does not empty completely;
  • Severe pain or abdominal discomfort, with no apparent explanation;
  • Tiredness for no apparent reason
  • Loss of weight without apparent cause.

Importantly, most of these symptoms are common, and usually, have nothing to do with cancer. However, you should consult your doctor, because only a professional can determine the cause.

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