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Symptoms of Colorectal cancer

Symptoms of Colorectal cancer: Introduction

Symptoms of colorectal cancer can vary among individuals. Some people experience no symptoms at all, especially in the early stages of the disease. Colorectal cancer often develops from benign adenomatous intestinal polyps, which in themselves generally produce no symptoms.

If adenomatous intestinal polyps are not discovered and removed, they can become cancerous, resulting in symptoms that include a change in bowel movements, such as ongoing diarrhea, having narrower stools, or constipation. Other symptoms include bloating, gas, abdominal cramps, rectal bleeding and/or blood in the stool. People may also experience a feeling of not being able to empty the bowel completely, weight loss, and fatigue.

As a colorectal cancer grows, the lining of the colon gets larger and hardens and the growing tumor can block the colon, causing intestinal obstruction or rupture of the intestinal wall and a life-threatening infection called peritonitis....more about Colorectal cancer »

Symptoms of Colorectal cancer

The list of signs and symptoms mentioned in various sources for Colorectal cancer includes the 17 symptoms listed below:

Research symptoms & diagnosis of Colorectal cancer:

Colorectal cancer: Symptom Checkers

Review the available symptom checkers for these symptoms of Colorectal cancer:

Colorectal cancer: Symptom Assessment Questionnaires

Review the available Assessment Questionnaires for the symptoms of Colorectal cancer:

Colorectal cancer: Complications

Review medical complications possibly associated with Colorectal cancer:

Diagnostic Testing

Diagnostic testing of medical conditions related to Colorectal cancer:

Research More About Colorectal cancer

Do I have Colorectal cancer?

Colorectal cancer: Medical Mistakes

Colorectal cancer: Undiagnosed Conditions

Diseases that may be commonly undiagnosed in related medical areas:

Home Diagnostic Testing

Home medical tests related to Colorectal cancer:

Wrongly Diagnosed with Colorectal cancer?

The list of other diseases or medical conditions that may be on the differential diagnosis list of alternative diagnoses for Colorectal cancer includes:

Colorectal cancer: Research Doctors & Specialists

Research all specialists including ratings, affiliations, and sanctions.

More about symptoms of Colorectal cancer:

More information about symptoms of Colorectal cancer and related conditions:

Other Possible Causes of these Symptoms

Click on any of the symptoms below to see a full list of other causes including diseases, medical conditions, toxins, drug interactions, or drug side effect causes of that symptom.

Article Excerpts About Symptoms of Colorectal cancer:

Colorectal Cancer: NWHIC (Excerpt)

Colorectal cancer is sometimes called a silent killer. This is because a person can have no symptoms at all at the start of the illness. As the cancer worsens, symptoms start to appear. The good news is that this cancer, if caught early, can be treated and often cured. The even better news is that it can be prevented with screening tests and a healthy lifestyle. (Source: excerpt from Colorectal Cancer: NWHIC)

Colorectal Cancer: NWHIC (Excerpt)

There are often no symptoms for colorectal cancer in its early stages, which is why screening tests are important. People who do have symptoms can have:

  • A change in bowel habits

  • Diarrhea, constipation, or feeling that the bowel doesn't empty completely

  • Bright red or very dark blood in the stool

  • Stools that are narrower than normal

  • Discomfort in the abdomen - frequent gas pains, bloating, fullness, and/or cramps

  • Weight loss with no known reason

  • Constant and extreme tiredness

  • Vomiting

  • Anemia (low iron in the blood) with no known reason

Some of these symptoms can be caused by other conditions. Talk with your health care provider right away if you think you are having any of these symptoms. (Source: excerpt from Colorectal Cancer: NWHIC)

What You Need To Know About Cancer of the Colon and Rectum: NCI (Excerpt)

Common signs and symptoms of colorectal 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 (frequent gas pains, bloating, fullness, and/or cramps)

  • Weight loss with no known reason

  • Constant tiredness

  • Vomiting

(Source: excerpt from What You Need To Know About Cancer of the Colon and Rectum: NCI)

Colorectal cancer as a Cause of Symptoms or Medical Conditions

When considering symptoms of Colorectal cancer, it is also important to consider Colorectal cancer as a possible cause of other medical conditions. The Disease Database lists the following medical conditions that Colorectal cancer may cause:

- (Source - Diseases Database)

Medical articles and books on symptoms:

These general reference articles may be of interest in relation to medical signs and symptoms of disease in general:

About signs and symptoms of Colorectal cancer:

The symptom information on this page attempts to provide a list of some possible signs and symptoms of Colorectal cancer. This signs and symptoms information for Colorectal cancer has been gathered from various sources, may not be fully accurate, and may not be the full list of Colorectal cancer signs or Colorectal cancer symptoms. Furthermore, signs and symptoms of Colorectal cancer may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed Colorectal cancer symptoms.

 

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