Colorectal Cancer: Risk Factors, Symptoms, and Testing

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By Dr. Jane Smith

Medical Oncologist and Gastroenterologist

Colorectal cancer is the third leading cause of cancer-related deaths in the United States. It is a type of cancer that begins in the colon or rectum, and it can spread to other parts of the body if it is not detected and treated early.

Risk Factors

  • Age (over 50)
  • Family history of colorectal cancer
  • Personal history of inflammatory bowel disease (IBD)
  • Diet high in red and processed meats
  • Obesity
  • Smoking
  • Excessive alcohol consumption

Symptoms

Many people with colorectal cancer do not experience any symptoms in the early stages. As the cancer grows, however, it can cause a variety of symptoms, including:

  • Rectal bleeding
  • Blood in the stool
  • Changes in bowel habits
  • Abdominal pain
  • Weight loss
  • Fatigue

Testing

There are several tests that can be used to screen for and diagnose colorectal cancer. These tests include:

  • Colonoscopy
  • Sigmoidoscopy
  • Fecal occult blood test (FOBT)
  • FIT (fecal immunochemical test) test
  • CT colonography (virtual colonoscopy)

Treatment

The treatment for colorectal cancer depends on the stage of the cancer. Treatment options include:

  • Surgery
  • Radiation therapy
  • Chemotherapy
  • Targeted therapy
  • Immunotherapy

Early detection and treatment of colorectal cancer is essential for increasing the chances of a cure. Learn more about colorectal cancer and how to prevent it.

Note: The information provided in this article is for informational purposes only and should not be taken as medical advice. If you have any concerns about your health, please consult with a medical professional.

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