Colorectal Cancer Screening

Maher A. Abbas, MD
Compassion, Excellence, Integrity

Diplomate, American Board of Surgery

Diplomate, American Board of Colon and Rectal Surgery

Fellow, American College of Surgeons

Fellow, American Society of Colon and Rectal Surgeons

Honorary Fellow, Philippine Society of Colon and Rectal Surgeons

Honorary Member, Surgical Section Serbian Medical Association

“The best interest of the patient is the only interest to be considered…”W.J. Mayo, MD (Founder of the Mayo Clinic)


Dr. Maher Abbas is an American Board Certified Colon and Rectal Surgeon who performs the latest and most advanced procedures to treat conditions affecting the small intestine, colon, rectum, and anus.  He is a leader in minimally invasive and endoscopic surgery. With over 18,000 operations and procedures experience, he provides state of the art treatment to his patients.


Why get screened for colorectal cancer?

Colorectal cancer is now the second to third most common cancer in the world.  An increased risk was recently noted in young people (age < 50 years).  Colorectal cancer affects the large intestine [Figure 1].  It usually starts as a small polyp that grows into a cancer [Figure 2].  Colorectal cancer screening SAVES LIVES!  The detection and removal of colon polyps prevents cancer.  When colon cancer is discovered at an early stage (before it spreads to other parts of the body), it is treatable and curable.

Figure 1 – The large intestine

Figure 2 – Colon polyp (growth)

What is colorectal cancer screening?

The goal of colorectal cancer screening is to detect polyps and cancer at an early stage.  Polyps grow over several years and removing them prevents cancer.  Most patients with polyps and early cancer have no symptoms.  Discovering these growths before they cause a problem is very important.  Several tests are available for colorectal cancer screening:

  • Colonoscopy
  • Imaging X-RAY studies such as CT colonography and barium enema
  • Stool tests such as fecal occult blood test (FOBT), fecal immunochemical test (FIT), and stool DNA test

Colonoscopy [Figure 3] is the best and most sensitive test to find and remove polyps.  Colonoscopy is superior to imaging studies and stool tests.  During the procedure, the entire colon is inspected and any abnormal growth is removed or biopsied.

Figure 3 – Colonoscopy for colorectal cancer screening

Who should undergo colorectal cancer screening?

Everyone is at risk for developing colorectal cancer.  The majority of patients diagnosed with colorectal cancer have no family history of cancer.  Several recent studies have reported an increased risk in young people. It is important to note that most patients with colorectal polyps or early cancer have no symptoms.  If you meet any of the following criteria, you should consider getting screened for colorectal cancer even if you have no symptoms:

  • Over the age of 40 years
  • Strong family history of

o   Colorectal cancer or polyps
o   Hereditary cancer or polyp syndromes
o   Multiple family members with any type of gastrointestinal cancer, gynecologic cancer (ovaries or uterus), breast cancer.  Especially if diagnosis at young age (< 50 years)

Furthermore, if you have any of the following symptoms, you should consider having a colonoscopy:

  • Abdominal pain, cramping, spasm
  • Anemia (iron deficiency)
  • Bloating and gas
  • Change in your bowel habits
  • Constipation or difficulty with evacuation
  • Diarrhea or loose frequent stools
  • Family history of colorectal polyps and cancer
  • Positive stool test for blood or inflammation
  • Rectal bleeding
  • Unexplained weight loss


If you would like to schedule a consultation for colorectal cancer screening and colonoscopy with Dr. Maher Abbas, click here.

Contact Us

    Preferred location for appointment
    King’s College Hospital London, DubaiAl-Zahra Hospital, DubaiNo location preference

    Appointment details
    Need urgent appointment (within 24-72 hours)Need routine appointmentRequest virtual online consultation (international patients only)