A colon with what appears to be a tumor

Colon Cancer Diagnosis

If screening or symptoms point to colon cancer, learn what common tests your doctor may use to help make a diagnosis, including colonoscopy and a biopsy.
Male patient and doctor in discussion in exam room
What to Expect From a Colon Biopsy
Medically reviewed by Rony Kampalath, MD
A rectal cancer cell
What Factors Influence Rectal Cancer Survival?
Medically reviewed by Doru Paul, MD
Fecal Occult Blood Test (FOBT): Uses, Procedure, Results
Medically reviewed by Douglas A. Nelson, MD
A slide on a lit up microscope
How a Colon Biopsy Is Performed
Medically reviewed by Rony Kampalath, MD
Technician holding blood sample for checking CEA in a patient with cancer
Carcinoembryonic Antigen (CEA) Blood Test: Uses and Results
Medically reviewed by Doru Paul, MD
Man talking with doctor
Stool Test Types and Options
Medically reviewed by Rony Kampalath, MD
Doctor sitting in office with patient talking and holding paper. Differences between colorectal and colon cancer
How Colorectal and Colon Cancer Differ
Medically reviewed by Doru Paul, MD
empty toilet paper rolls
How to Know When Bowel Prep Is Complete
Medically reviewed by Priyanka Chugh, MD
Colon cancer screening
A Guide to Colon Cancer Screening for the Uninsured
Medically reviewed by Rony Kampalath, MD
Doctor talking to patient in office
What Is a False Positive Test Result?
Medically reviewed by Doru Paul, MD
A doctor goes over a patient''s x-ray, screening for colon cancer.
Barium Enema: Uses, Side Effects, Procedure, Results
Medically reviewed by Doru Paul, MD
Concerned young man
Young People and Colon Cancer Diagnosis
Fact checked by Ashley Hall
Doctor talking to patient in doctor's office
Anemia as a Signal of Colon Cancer
Medically reviewed by Doru Paul, MD