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Diagnosis of Colorectal Cancer

  • Michelle Badash, MS
Publication Type:

Condition InDepth

Diagnosis of Colorectal Cancer

Animation Movie AvailableRelated Media: Lower GI Endoscopy

Your doctor will ask about your symptoms, and medical and family history. The abdominal and rectal areas will be carefully examined. Your doctor may recommend different tests in order to identify abnormal growths and confirm diagnosis.


  • Benson AP, Venook AB, Cederquist L, et al. Colon Cancer. Version 2.2017. In: National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines in Oncology (NCCN Guidelines). NCCN 2017 Mar from NCCN website.
  • Colon cancer treatment option overview. National Cancer Institute website. Available at: https://www.cancer.gov/types/colorectal/patient/colon-treatment-pdq#section/_135. Updated January 30, 2020. Accessed February 27, 2020.
  • Colorectal cancer. American Cancer Society website. Available at: http://www.cancer.org/acs/groups/cid/documents/webcontent/003096-pdf.pdf. Accessed February 27, 2020.
  • Colorectal cancer. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/colorectal-cancer. Updated January 22, 2020. Accessed February 27, 2020.
  • Glynne-Jones R, Wyrwicz L, Tiret E, et al. Rectal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2017 Jul 1;28.
  • Stages of rectal cancer. National Cancer Institute website. Available at: https://www.cancer.gov/types/colorectal/patient/rectal-treatment-pdq#section/_111. Updated January 30, 2020. Accessed February 27, 2020.


  • Mohei Abouzied, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.