Colon Cancer Symptoms


Following are some common early signs and symptoms of colon cancer which may help in early diagnosis if attended appropriately:

colon cancer symptoms infographic
Early signs and symptoms of colon cancer
  • Change in bowel habit (constipation or diarrhea)
  • Abdominal pain
  • Blood in stools (either bright red or dark colored feces)
  • Formed stool, narrower than usual
  • Frequent abdominal cramps, bloating, or feeling of fullness
  • Unexplained weight loss
  • Weakness, fatigue, or lethargy
  • Nausea and vomiting

Symptoms of colon cancer may also depend upon the size and location of the disease.

Tumors in the distal part (left-sided colon) or in the rectum are generally associated with blood in stool, altered bowel habit and/or obstructive symptoms. While tumors in proximal (right-sided colon) causes occult blood in stools or malena (dark tarry feces).

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Video explaining symptoms of colon cancer

Video Transcript:

CancerBro, what are the presenting colon cancer symptoms?

Colon cancer may present as bleeding per rectum, in form of red or black stools. It may also present as abdominal distention or constipation.

Abdominal pain or weight loss may also be present in the majority of patients.

Rarely, jaundice, cough, and breathlessness may be present due to the spread of cancer to the liver and lungs.

These were the symptoms with which a patient of colon cancer presents commonly.

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