Signs & Symptoms Cancer

Rectal Cancer
Signs and Symptoms

Common signs and symptoms of rectal cancer include:

  • A change in bowel habits
  • Diarrhea, constipation, or feeling that the bowel does not empty completely
  • Blood, either bright red or very dark in the stool
  • Stools that are narrower than usual
  • General abdominal discomfort such as frequent gas pains, bloating, fullness or cramps
  • Weight loss with no known reason
  • Constant tiredness
  • Vomiting

UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.

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