7 signs and symptoms of colon cancer

symptoms of colon cancer

Colon cancer is an infection of the colon or large intestines. Tumors develop in the colon and can bleed and they also impair absorption of fluids into the body and digestion.

Symptoms of colon cancer

The symptoms of colon cancer are;

  • A persistent change in bowel habits – Changes in bowel habits can be a sign of colon cancer. A person might experience diarrhea, constipation or a change in the consistency of the stool. All this might just occur suddenly and it can be accompanied by other symptoms.
  • Rectal bleeding – Rectal bleeding can be noticed by carefully observing the stool. If the stool is blood-stained, there is a very high likelihood it is a symptom of colon cancer. The bleeding usually occurs in the lower colon or rectum. This symptom is usually attributed to a hemorrhoid infection and thus most people overlook it and delay cancer diagnosis.
  • Persistent abdominal discomfort – Persistent abdominal discomfort such as cramps, gas, and pain can be a colon cancer symptom especially if it is accompanied by rectal bleeding and changes in bowel habits.
  • Weakness or fatigue – A feeling of weakness or fatigue is a common sign in most infections. Colon cancer can also show this symptom. Fatigue commonly occurs as the body tries to fight infection as the activities within the body increase or internal blood loss.
  • Unexplained weight loss – Sudden unexplained weight loss can signal an infection. Colon cancer can also show this symptom. A person will have a weight loss without trying even if they are on a balanced diet.
  • Iron deficiency anemia – Iron deficiency anemia is a common symptom of colon cancer. This usually occurs due to blood loss from tumors and impaired iron homeostasis due to chronic infection.
  • A feeling that your bowel doesn’t empty completely – A person will just have a feeling of not emptying their bowel completely even after going to the toilet severally.


What color is stool with colon cancer?

Rectal bleeding can cause the stool to change color to bright red or dark red. Sometimes the stool will be maroon or purple in color.

What mimics colon cancer?

Other conditions that can mimic colon cancer are; irritable bowel syndrome, ulcerative colitis, Crohn’s disease, diverticulosis, and peptic ulcer disease.

Can colon cancer affect menstruation?

Colon cancer cannot affect menstruation. It’s only some symptoms of colon cancer that can be similar to those of menstruation. The symptoms are anemia and abdominal discomfort.

Do symptoms come and go with colon cancer?

No, colon cancer symptoms appear and they can only disappear after treatment has been initiated.

What does colon cancer fatigue feel like?

Chronic fatigue can is a likely symptom of colon cancer.

What does cancer poop look like?

Cancer poop can be watery or dry than usual and its color can be dark due to rectal bleeding.

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